(1 minus 2) to the 5th power = ? many will get this WRONG!

[@rolo7110]

-1. You have to multiply -1 5 times. Negative x neg = positive. Positive x negative = negative. Love these, keeps my mind sharp

[@tonidozier4573]

Shortcut: Any negative number raised to an odd-numbered power will be negative. Any negative number raised to a positive power will be positive.

[@Whatnok]

I got the 1 but I missed the negative part 🧐

[@doubledee9675]

Yes, it's pretty straightforward

[@encinobalboa]

Complete math inside parenthesis first. Fairly simple.

[@chadrew6]

No because on the fifth time you get a negative answer. The first multiplication is -1 times negative one which equals one the second multiplication is one times negative one which equals negative one the third multiplication is -1 times negative one which equals 1 the fourth multiplication is one times negative one which equals negative one the fifth multiplication is -1 times negative one which equals one. So the answer is positive one not negative one

[@ginny5937]

You're so encouraging! I failed high school freshman algebra, but the teacher gave me a D- because I was transferring to a private school and she felt sorry for me and didn't want me to have an F on my transcript. But I did pretty well in geometry. In college I took general math and statistics for my B.A. in Psychology. Then in Nursing School I chose the Associates Degree in Nursing program which used a book of math for nurses. The B.S. in Nursing program required college level algebra, and I was totally intimidated by that, plus I already had a B.A. degree so I was satisfied to get the ADN and become a Registered Nurse. All of this happened between 1958 and well, many years later. Now I'm retired and enjoy your videos, solving problems using PEMDAS. I recall some of the B.S.N. student nurses in the hospital telling me there was a teacher who taught them certain steps to use to solve the algebra problems, and they'd say, " Talk to him, you can do it!". I'm glad for them but I was satisfied. I think we know. 😉

[@randallgreen4084]

Keep em coming, it's fun doing these exercises I've not done in 50 years.

[@ginny5937]

Yes!!

[@debrachapman7839]

-1 to the 5th power or -1

[@pocheeno6939]

2.5

[@jd_jd_jd]

It might be fun for you, but have you got the correct answer?😉

[@CleoPatra67]

Same here! I struggled in math at the time. Today these little exercises are just for fun and keeping my mind open 😅

[@veronho1ness]

I like watching and solving these maths problems as it shows the teaching methods employed over 40 years ago still work.

[@mikefelty2625]

The trick I use for multiplying negative numbers by exponents is if the exponent is even, the result is positive. If it's odd, the result is negative.

[@jffry24]

Wrong

[@TheSimCaptain]

Correct. If the exponent ends in an odd number (1, 3, 5, 7, 9), then if the base is a negative number, the result is a negative number.

[@mingkee27]

Process the bracket (1-2) >>> -1 -1⁵ is self multiplying 5 times Answer is -1

[@donitaforrest9064]

Best Description 👍

[@robertalangdon6712]

This is what I thought

[@CR3W1SH03S]

Quick tip. Even exponent on a negative number is positive. Odd exponent on a negative number is negative.

[@troyallen8223]

👍🥳🥳🥳

[@warbeast8026]

-1 in this case since the value inside the parentheses will be a -1 after you apply the order of operations if you have an odd number as the exponent the answer will be a negative value if it's an even number it will be a positive value

[@mikefelty2625]

That's the trick I've always used as well. 👍🏼

[@sholland42]

Negative numbers at even exponents are positive, odd exponents are negative. Answer = -1

[@edpottinger849]

I was taught BODMAS.Brackets Of or Exponents,Division Multiplication,Subtraction,Addition.I have always followed the order especially with variables in bi-knomial and tri-knomial equations.

[@cindyurban150]

Even with the order of operations, I have failed every math problem you have posted, Now I know why I have failed Math time after time. I feel defeated by a pile of numbers. I still keep trying.

[@ritaparker478]

Good for you to keep trying. Me too. All those numbers would make more sense if they were explained in a practical sense. Story problems are hard but at least there is a reason the formulas.

[@arthurcrown3063]

Rather long winded; (-1)^5 = -1 because there are an odd number (5) of minus signs.

[@lauralowery9303]

Thanks for taking the time to instruct us! I used to be really good at math, but then life happened and I just wasn't using it much. Now I'm pretty rusty. I really appreciate this show! Sometimes I get it right and sometimes I don't. It's all good! Thanks again and keep them coming! Also, you have a great voice and attitude! ❤

[@rumi9005]

I'm 74 years old and, to date, I've never found ANY reason to make use of Pythagoras Theorem. Yet it was DRILLED into us in math class how important this theorem is. Something every child MUST know. Most people are unable to properly solve a relatively simple equation like this one. But I'm guessing almost everyone can recite the Pythagorean Theorem by rote.

[@lauralowery9303]

@@rumi9005 you're probably right!🤣😁

[@stevie586]

ROFL, this channel reminds me I aced math 500 years ago! This is so easy for me…I love this!

[@T_Barb]

These are so fun. I love getting my mathematical brain going again. I had lost it to retirement.

[@chesswizard05]

(-1)(-1)(-1)(-1)(-1)= -1

[@devonwilson5776]

Greetings. The answer is -1. Starting with the bracketed figures we get the result of -1. Thereafter -1 is raised to the 5th power to get minus 1. ( Minus times minus = Plus times Minus = Minus times Minus =Plus times Minus = Minus).

[@libertypastor1307]

Easy, if you keep track of the alternating positive or negative condition of the 1 when doing the five exponential operations. I got it right by doing it in my head and counting on my fingers the five times I multiplied -1.

[@barbarasnetiker3452]

The day after my co-worker told me that her daughter was having trouble in her pre-algebra class at school, I came across your KZbin channel. I texted her with your KZbin and website info. I hope it helps her!

[@veritasaequitas9875]

Answer is -1 Because (brackets first) 1 - 2 = -1 Followed by orders -1 x - 1 = 1 1 x -1 = -1 -1 x -1 = 1 1 x -1 = -1

[@kd1s]

In computer programming PEMDAS is tightly bound..bp that pllus Boolean logic and knowing base 8, 10 and 16 for example permissions in Unix are octal. And ipv6 notation it's hexadecimal

[@robertloveless4938]

1x1x1x1.... =1, no matter how often you choose to do it. A negative integer when in an exponent: If exponent is odd, answer is odd. If exponent is even, answer is even.

[@alissagonzales735]

Now this was simple. Did it in my head.

[@webikehike]

Thanks, i enjoy your videos, excellent. Helps keep my mind sharp!

[@waltwimer2551]

I did very well in math in high school, and relatively well in college. (I loved high school Calculus! The pace in college was twice as fast as high school, so that hurt me a bit. I went as far as discrete math, and differential equations. I majored in electrical/computer engineering.) These days I mostly write embedded software, so I don't use as much Calculus as I would kind of like. But I'm always happy that many math concepts have stayed with me for 40+ years. The answer to this problem was obvious to me and I could do it in my head. But for fun, I double-checked by treating it as (x - y)⁵ where x = 1 and y = 2, or (x + y)⁵ where x = 1 and y = -2. I expanded these out to fifth-order polynomials, plugged in the values for x and y, and verified my (much simpler) mental calculation of (-1)⁵ = (-1)⁴ • (-1)¹ = 1 • (-1) = -1. 😁😎👍

[@dparks3784]

Such an interesting channel. I am getting a refresher of information I knew back in the early 70's.

[@ToeTag1968]

I used to fall asleep in high school math class. Sorry Mr. Anderson! It was not my strong suit. It took me way too long to get the concepts. I'm so glad I have a decent understanding of the order of operations now. Not that I use it in daily life, but it's nice to feel smart and not have to use a calculator for many of these examples. Thanks!

[@ginny5937]

Yes, I agree!! 😉

[@dazartingstall6680]

7:45 And this is how you can tell that Maths teachers aren't English teachers. I've heard this "explanation" so many times, and it irks me no end. x^y is *not* x multiplied by itself y times, no matter how many times you hear a Maths educator say it is. Here's a simple one: solve x=2³ and count how many times you perform the action "multiply by two." Twice. You did it twice, not three times. In fact x^y is 1 multiplied by the base (x) the number of times indicated by the exponent (y). Helpfully, this explains why x⁰ equals 1 without that having to be learned by rote as if it were a special case, since "multiply 1 by something zero times" is just a paraphrase of "don't do anything to it."

[@oldschoollew]

The trick with this one is did you see a variable in the initial problem and actually goes one step in..... so first principal would be (1-X)exp 5 where X=2 so you can expand (1-X)(1-X)(1-X)(1-X)(1-X) and so it should a solution of -1 for both and similarly the other way would be (Y-2)exp 5 but in this case Y=1 so a lot of these "easier" problems are about the person(s) reading the problem correctly..... So a simple misreading is reading the problem as (1-2X)exp 5

[@fretlord4201]

I'm trying to gear myself up to finish my degree, which means getting my math skills up to an acceptable level. As one who never made it beyond pre-algebra, it's a challenge. I'm so glad I found your channel.

[@waynerethmel6900]

I am 74 and math was my best subject got 98+ on my sat test in math and got 99+ on my navy entrance exam in math. math was always fun and if you enjoy something its always easier. the most difficult or longest problem we had was prove 1 does not equal zero. we had to use current formulas and it took about 3 pages lol

[@johnlamb3101]

Yahoo!

[@waynerethmel6900]

i was in the service and i decided to go back to school and one of the classes i took was statistics. so i went looking for a statistical calculator to speed things up. the teacher saw my calculator and told me i couldnt use it. well i was older than most the students since i had been in the service for ten years. so i explained i knew how to do the problems without the calculator just to speed things up. even with a calculator you have to enter the correct numbers so it is not like it is automatic

[@vee8217]

(1-2)^5=(-1)^5= -1 Note (-1)^5= -1 (-1)^4= 1 (-1)^ 1000= 1 Any negative number to the power of an odd number gives you a negative figure . A negative number to the power of an even number gives you a positive figure

[@CasaErwin]

When -1 is raised to any even power is = to +1 while raised to any odd power it is = to -1.

[@williampapadopoulos8145]

It’s -1! Easy peasy! Any negative number raised to an odd numbered power will end up being negative! Do the subtraction within the oarentheses first. 1-2 = -1. (-1) to the 5th power is -1.

[@Dudleymiddleton]

Dividing before multiplying seems more chaotic, so it makes sense I guess. I remember vaguely back in the 70's 80's at school in UK in long division we were taught D.M.T.B., Dangerous Men Throw Bombs - Divide, multiply, Take away(subtract) Bring down.

[@gfp46]

I’m 76. Enjoying the challenge! Thank you❤

[@argonwheatbelly637]

-1 in about three seconds. Sorry, too slow. It's 3:51am.

[@bigdog3628]

(1-2)^5 is (-1)^5 which then is -1 * -1 * -1 *-1 * -1 which there fore is -1.

[@CasaErwin]

-1 raised to any even power is +1 and raised to any odd power is -1. Since this one is raised to the power of 5, which is odd, the answer is -1.

[@mikechicago489]

question? if -1to 5th power is -1...-1 to the 6th power is 1 and -1 7th power is -1 ...is this correct and make sense?

[@AndoC29]

I probably knew the answer to this when I took math classes in high school and college. That was 40-45 years ago and I have still not needed or used this in a real life situation

[@robduijf2752]

Well I did. But beside of that: it's just fun to get the brain going between an apple and an egg...

[@kjellg6532]

What does «Many will get wrong» mean?

[@annepearson4357]

-1. 1-2= -1. To the 5th is same as -1 x -1 x -1 x -1 x -1. (-1 x -1 = 1) ( x -1 = -1) (x -1 = 1) (x -1 = -1). And yes, neg x neg AND pos x pos ALWAYS equals positive. And neg x pos AND pos x neg ALWAYS equals negative. [You do well teacher, to show these things to people!]

[@georgebarr2123]

I think the wheels fell off my math wagon :( im 65, live in hot West Australia and have found this interesting. I'll try and learn a bit more, as they say it's never to late to learn. Thankyou :)

[@rumi9005]

Never heard of PEMDAS! I like it!

[@stevehall2239]

Credit, the trickery was there. Good work.

[@lorilayton2223]

Thank you because , I love math , and I was robbed . Anxiety got in the way . Math was the only thing that didn’t bother me ,

[@nunyanina583]

Hello Lori, Just wanted to say hi. I understand the anxiety. The girls in my class who asked me for help were the same way at different levels of anxiety. I helped three that were kind of nerdy but really cute. I was too scared to ask them to go steady, let alone get to now them more. I have been told by my older sister and her friends I was handsome. Not sure if that played into it. Looking back I wish I had a better self-esteem. Your comment made me think about all that. One girl I helped had a boyfriend who was jealous. He was a punk that went around doing one punch knockouts. He had one of his goons call me away from her and into the hall where he left me lying on the floor with my head ringing. The message was to stay away from her. She was more concerned about her grade and started crying when I got my books and told her I can't help her any more. At 66 I am not afraid to be me and speak my mind so I have fund flirting. I mage a point of noticing girls when they have a different hair style or color. I always notice that girls who did well or loved math were cute or my type? I guess. So for us math lovers of the world, I bet you not cute but gorgeous. I don't think you robbed yourself, but the teacher did. The teacher was not explaining it right for you. How else could I tell these girls a way to understand math better, and they end up with a good grade but the teacher could not. We look at teachers as authority and we can not challenge them. They teach in a method tho garner an overall passing grade among the masses. Therefore it was the guys who got better grades. You were robbed by your teacher in my opinion. Have a nice day 😊

[@flagmichael]

That was "at a glance" problem. -1 to any odd power is -1; to even powers it is 1.

[@allenm2222]

Is there a difference when a negative number in ( ) or not in multiplication.

[@000001willy]

Figured it out in two seconds in my head and got the right answer. Very simple problem. My 74 year-old brain is still working.

[@sylviacarlson3561]

show off!

[@susangort2794]

-1. Need to follow PEMDAS

[@jefferyfarr6542]

It's -1 (negative 1 times itself is 1 then times -1 is negative 1 then times -1 is 1 then times -1 is (-1)

[@bjmadden8136]

(1-2)= -1… then… -1 * -1 *-1 *-1 *-1 *-1= -1

[@stephenreese5921]

(1-2) to the fifth power I got but where does the + come from? (1 + -2) to the fifth? I understand the subtraction of 1 dollar from -2 = -1 but the addition doesn’t fit the equation. There is no explanation of where the + sign came from!

[@composer7325]

Excellent video, thank you.

[@JoeCnNd]

If your power is an odd number do you keep the negative and an even number gets the positive correct?

[@charlesmcdonald8375]

I enjoy your presentations. Thank you for doing this.

[@Iceland874]

Got another one. Yay! This one was the easiest so far.

[@katemitchell8690]

Thanks!

[@LinksFascisme]

Follow the rules easy in a couple of seconds -1

[@duggydugg3937]

go ahead and is a self encouaging phrase ?

[@christas4767]

Hate Math… LOVE your vids! ❤❤❤

[@deborahclayton3101]

Math questions like this make me realize why I’m an artist! Lol

[@fyrekrystaal27]

-1 I looked at the equation and knew the answer

[@marceliusmartirosianas6104]

(1-2)^5= 5 ACADEMIC CHICAGO Marcelius Martirosianas

[@dorothy1]

I had to work to stay alive from grade 1 onward. Math went to the background.

[@rjgambill]

Ok, so I'm 56 y/o now and when I was in high school it was "Everybody Pleases My Dear Aunt Sally" (EPMDAS) Is this just another example of the Mandella Effect? This has gone too far now as it's causing me to get my math answers wrong.

[@rustyBdTZ]

before pemdas, what was the prevailing rule(s)?

[@doubledee9675]

The rules were always there, but the acronym "pemdas" is new.

[@kjellg6532]

@@doubledee9675 No, not always, but for many years, say more than 100. Still today PEMDAS is not good enough. How to solve 2/2x when x=3? juxtaposition Is unclear. So is order of multiplication vs division. You must know, PEMDAS is “wrong” and does not tell. Same with add/sub.

[@doubledee9675]

@@kjellg6532 I'd say that the rules were always there but were undiscovered.

[@laurendoe168]

I have a question... we also take absolute values. Where would this fit in order of operations?

[@robduijf2752]

Absolute values are numbers. What you do with these numbers are the operations according to PEMDAS.

[@laurendoe168]

@@robduijf2752 PEMDAS focuses on operations and doesn't really address what to do with the number itself (with the exception of exponentiation).

[@cJ-cr8gp]

Simple. I suppose I was educated correctly. I don’t know that for sure because I can’t remember that far back..!!!!

[@R3APERxG1RLX]

With negative numbers, if the power is even, the answer will be positive. If odd, it will be negative.

[@survivrs]

I keep getting confusd by "to the 5th power" or "to the 1st power". HELP!!.......PLEASE!!

[@raya.pawley3563]

Thank you

[@snowrose101]

Super simple. -1.

[@deidrabrey4043]

Neg 1 or -1

[@allysondoerfler8688]

I love math; people who love puzzles should love math.

[@rondouglas5147]

-1 in about 5 seconds in my head. Waiting for you to make it complicated!

[@lindayeomans6369]

-1 lots of fun!

[@tkyap2524]

Got it right (-1). Memory is still good for math.

[@michaelhargus4316]

Math was one of the few subjects that I did good in when I was in school and it bothers me to no end knowing that we we actually have officials in power that want to eliminate the math curriculum for reasons that are mind-numbingly stupid.

[@BurkeJackson-k2w]

B Jackson -1

[@JamesGreenspan-l9s]

Can you do an example with juxtaposition.such as 6÷2(2+1)=?

[@petersearls4443]

6/2(2+1)=6/2(3)=3(3)=9.

[@kjellg6532]

@@petersearls4443 And how much is 2/2x when x=3? Some would say 3 others 1/3. (FYI, not all text books in math coinside on this. PEMDAS is not good enough)

[@bobcornwell403]

I came up with -1.

[@bt-rl4mh]

Forget the pictures

[@batavuskoga]

Can you give here a wrong answer ? I don't see any difficulty solving this.

[@rogernichols1124]

I failed Maths GCSE 3 times at school (but went on to get a university degree in Modern Languages) but I think I managed to get this right, didn't I? Maybe I'm not so dias I thought!😊

[@johnnyllooddte3415]

1 or -1

[@wladicus1]

_ In engineering, physics and higher mathematics multiplication precedes division. It is only in elementary school that the PEMDAS system was taught to simplify procedures for young students , many of whom had difficulties in comprehending mathematical concepts. I speak from actual experience in the field of technology.

[@GarySmythe]

So, (-1)to the 6th power = positive 1.

[@markboyce1001]

-1 to the 5th power is -1

[@MrMousley]

Before I watch your video .. (1 - 2) to the 5th power -1 to the 5th power - 1 x -1 x -1 x -1 x -1 1 x -1 x -1 x -1 -1 x -1 x -1 1 x -1 -1

[@onceamusician5408]

does this equation have any PRACTICAL bearing in something like optics or engineering? if not i submit it is a silly question not worth answering. nearly 50 years ago i had a strong debate with my high school maths teacher about 10 to the power of zero. a few years ago i met him online and , never having forgotten the debate i asked him if he was aware of any practical application for that question. he could not think of any. as for your "many will get this wrong" why the arrogant gloating? if you could not distinguish docetism from aphtharto decetism (these are real things BTW ) should I gloat at that

[@aaronsterlind6334]

What happened to BEDMAS? I know I'm 51 but it used to be Brackets, Exponents, Division, Multiplication, Addition, Subtraction. Now, it can't be harder to remember then PEMBAS because I'm a 51 year old high school drop out and I took one look at that, thought BEDMAS for about one second and then said to myself, "it's -1". PEMBAS isn't a great acronym in the sense that the you say E stands for Powers, weird, since in BEDMAS we just called it Exponents, hence the "E". What am I missing except the fact that we don't use words for what they mean anymore? For about 30 years now I've been asking people, on and off, a simple question, "what's the formula to find the area of a triangle"? Oh, and I have to point out to every one of them it's okay to answer, it's not a trick. In 30 years of asking only two people ever gave the right answer or where even able to answer, FYI. At any rate, of course it's one half base times height. So, it's my half a square theory. No one remembers the official formula but when I ask them, again after telling them it's okay, it's not a trick, "how do you find the area of a square or triangle"? Most timidly get that right, length times width, then I draw a crude square and a line between to corners and ask, "what is a square"? It's half a triangle. My point: isn't it easier or better just teaching that it's half a square or triangle then scaring the timid with one half base times height? Which clearly no one ever remembers. At any rate, PEMBAS or BEDMAS, whichever, great channel, it got my attention because I like numbers and I see patterns in numbers like people see animals in clouds, which I enjoy so thank you, numbers to enjoy with the first coffee, now off to the dismal news I have no choice but to know.

[@patriciadavison1486]

This is hieroglyphics to me! I have ZERO brain cells as far as math goes…got ~FAIL very single question my whole life …at age 71 I still do! I once said one half of one quarter was a half…doesn’t that say it all! What is “the ‘power’ of anything anyway???? I will die without ever knowing I guess.

[@DB101415]

I love this channel. ❤❤❤

[@RebeccaIlovenemmonnbll-mx9qi]

-1 PEMDAS

[@lorilayton2223]

In between your ears … your thing called your brain ❤

[@duggydugg3937]

disagree .. squared its pos 1.. then pos 1 cubed is 1.. pos 1 to the 4th is 1 ... and pos 1 to the 5 is 1

[@heqitao]

Good question, thx.