Solving Quadratic Equations By Completing The Square

[@TheOrganicChemistryTutor]

Quadratic Equations - Free Formula Sheet: bit.ly/3WZ8v1Z Final Exams and Video Playlists: www.video-tutor.net/

[@John-eq5fg]

Question why did you subtract x+2=3 with 2?

[@latedegre6855]

To get x by itself ​@@John-eq5fg

[@abdullasaleh-bn4by]

@@John-eq5fgbecause there is a equal so when the 2 go to the other side it will be negative 2😲

[@emacelikovic1675]

you've deadass taught me more in like 5 hours what my maths teacher couldnt in 5 months

[@Imtoxicngl]

Deadass he makes it so simple teachers be struggling

[@svxid]

literally

[@svxid]

@@Imtoxicnglfr

[@2muchmoney694]

he didn't teach it better. you just don't pay attention in class.

[@Allthenamesweretaken17]

@@2muchmoney694 how do you know? You probably werent there

[@samuelarendac4896]

You single handedly saved me from my quiz tomorrow. Thank you so much!!

[@spookybells5099]

How’d it go?

[@Allthenamesweretaken17]

same man. Wish me luck.

[@camdengareau3779]

Same

[@joviesqq]

Ive been searching for so many tutorials for this all night and none of them helped me as much as this one. When I tell you I out loud said "oh- i get it" and laughed over how long it took me to realize my mistake 😭😭 thank you so much youve got a new subscriber 🙏

[@kellycasandraagot3689]

Everybody's busy listening and just vibing with stress

[@anonomoususer9331]

Lmfaoo idk if its just my school but this year specifically has me dead inside and its so hard to focus on this lmfao

[@jnapbatobatan1512]

same bruv kinda vibing with stress too

[@Circa1628]

@@anonomoususer9331 I've got the opposite. To much focus. Feels like my eyes aren't blinking as much. But also got the dead inside vibe. Look at us-- twinsies.

[@dakarielliot7019]

I dont mean to be off topic but does someone know a method to get back into an Instagram account..? I somehow forgot the password. I would appreciate any help you can give me

[@dakarielliot7019]

@Julius Conrad i really appreciate your reply. I found the site thru google and Im waiting for the hacking stuff atm. Looks like it's gonna take quite some time so I will reply here later when my account password hopefully is recovered.

[@stacyoketch6913]

I don't think there's any better teacher than you👏👏my mathematics and applied science has become so much easier.. thank you so much

[@thanosofthecommunistdruzhi9107]

My current math teacher is probably one of the best math teachers there are, even amongst social media mathematicians who make sound guides. Alas, my teacher doesn’t make any video guides and have notes that are, for me, hard to follow. So the only way I can learn is by focusing in class which my absent and mathematically impaired mind is not too good at. I have to sporadically seek KZbin guides as a result, lol.

[@sasquatchIRL]

Again, doing a better job explaining this than my math teacher. Left my math class today being totally confused, couldn't figure out the homework, came here, now it's game on for the homework!

[@insertnameee]

I HAVE BEEN WORKING ON THIS FOR HOURS BLESS YOU

[@amharictereteret]

You're the best teacher i have ever seen before.

[@webdevelopmentwithjavascri8020]

Never seen you mean? Just kidding. This guy is the faceless goat

[@GODiKING]

0:00 Completing the Square 4:14 3x Squared minus 5x is Equal to 10 Solve by completing the Square and factor the Expression

[@kalakaksh]

wdym?

[@jeromeross5440]

Thanks!

[@Coldblooded40269]

damn

[@XenonPlayz0304]

Dawg didn't even say thank you 💀

[@jessejames4284]

Outstanding-I'm teaching my grandson geometry via internet, and we are completing the square in a geometry exercise. we will review your presentation as it is well presented. Thanks.

[@Rain-1945]

Took me literally 2 minutes to understand this thank you sm mate

[@Samerosaamamma]

bro what is going on

[@samhithaajjarapu2690]

this is kinda late, but he does have another video about 30 minutes explaining all the basics. you should watch that and then watch this one. it should clear things up :)

[@londekadlamini1609]

I'm completely lost

[@KM-dd1cr]

It's okay man... Just go to sleep...

[@loscampesinosgirl]

idk leave me alone

[@acmartialarts2227]

I seen the top of your head

[@ExcitedFreshwaterLake-be9kp]

Bruh I've got my last test of the year tomorrow and you helped me understand thanks a million

[@DEEPSE4ALIEN]

It’s so over

[@crunchy_crop]

i have a precalc test in like an hour. it is soooo over

[@emofurriess7102]

yup i'm definitely failing

[@Templar_0x]

Did you fail?? 😢

[@shaheerhabib497]

@@Templar_0x did he fail?

[@Templar_0x]

@@shaheerhabib497 never got to know

[@shaheerhabib497]

@@Templar_0x AHAHAHA gl tho. im giving my gcses rn T-T

[@light5757]

Fr

[@ethyriel]

Bro's singlehandedly saving my math grades 🙏🙏🙏

[@melissazadrozny5167]

Why my college textbook doesn't explain it like this is beyond me, thank you because without videos like yours I'm pretty sure I would have dropped out already.

[@11rosenashwan89]

College this is 8th grade math

[@melissazadrozny5167]

@11rosenashwan89 And yet my college can't teach 8th grade math. I don't know about you but most of the math I learn falls out of my head in a couple months

[@alaskajtrailmakers4377]

​@@melissazadrozny5167 I relate. I will know exactly how to solve an equation, yet a couple months later I forget. The pain...

[@erlliuzjhulb.raposo]

Thank you! I learned it so easily.

[@ngndnd]

this just confused me even more

[@Blxckbxrd17]

You just don't know basics

[@harimaharjan2591]

​@@Blxckbxrd17Fr

[@t-sauce2497]

Just use the formula: a(x + b/2)^2 -(b/2)^2 + c

[@ZOMBIE_NOTFOUND]

@@t-sauce2497 what if ax²=bx+c? like 5x²=2x+1 how to solve this?

[@assassin101c]

@@ZOMBIE_NOTFOUND Bring the 2x term over to the left side by subtracting it from both sides. 5x² = 2x + 1 becomes 5x² - 2x = 1 Take the 5 out 5x² - 2x = 1 becomes 5(x² - (2/5)x) = 1 we can simplify this again by dividing both sides by 5 5(x² - (2/5)x) = 1 becomes x² - (2/5)x = 1/5 Now you have it in the form you want. Take the -2/5, half it and square it, then add to both sides. -2/5 halfed is -1/5. This -1/5 is the term we want inside the brackets. Squaring that gives (-1/5)^2 = 1/25. So add 1/25 to both sides. x² - (2/5)x = 1/5 x² - (2/5)x + 1/25 = 1/5 + 1/25 (x - 1/5)² = 1/5 + 1/25 We can simplify the right side by making them have a common denominator. 1/5 = 5/25. so 1/5 + 1/25 = 5/25 + 1/25 = 6/25 (x - 1/5)² = 1/5 + 1/25 (x - 1/5)² = 5/25 + 1/25 (x - 1/5)² = 6/25 Square root both sides. (x - 1/5)² = 6/25 x - 1/5 = ± sqrt(6/25) x - 1/5 = ± sqrt(6)/5 Add 1/5 to both sides x - 1/5 = ± sqrt(6)/5 x = ± sqrt(6)/5 + 1/5 x = (± sqrt(6) + 1)/5 Not the best way to solve an equation like that but I hope it helps.

[@SimonKissi-j9k]

I have an easy way of solving this to your understanding guys 😊😊. I understand this video perfectly well too❤

[@RakOfLamb]

This method is my strongest and watching this video helped me strengthen completing the square for me thanks

[@np7729]

Dude week u save my grades at least 4 times, cant thank you enough

[@ThomasAgueros]

at 2:30 could you simply divide all terms by two instead of factoring out the two?

[@aanyaa1111]

Yeah I tried it and eventually you get the same answer. imo, just dividing everything by 2 is much faster and easier

[@Wumbology10]

​@@aanyaa1111Exactly this way makes zero sense, and honestly takes a simple problem and makes it complicated. I love the Organic Chemistry Tutor, but this was a horrible explanation imo.

[@jeromeross5440]

I am really impressed with your teaching skills.How can we see a photo of you?

[@ambadeblau]

congrats on reaching 2M!!!

[@ErikSkoog-j6q]

My math teacher sucks, but from watching this video, it only took me 1 minute and 40 seconds to understand it, my math teacher could never do this in a million years.

[@SillyGoofeGuy]

wait so im doing this with a y= equation (for exapmle: y=x^2 - 6x + 5) and i dont understand what to do because around 1:21 you add 5 and 2^2 what do you do if the thing is y+3^2??

[@Wyntr1ss]

Can i ask? In 2:25 why do we need to multiply 9 to 2?? I js don’t understand it can anyone help or maybe that’s js how it works

[@nooooo.5]

We added 9 inside the parenthesis on the left side of the expression, which is actually 18 due to the factor of 2 outside, so we must add 18 to the other side to keep the equation balanced. We don’t add 9 to the other side because the other side isn’t factored by 2 2(x^2 - 6x + 9) = 2x^2 - 12x + 18 We add 18 to 7 and not 9 because the side 7 is in isn’t factored by 2

[@temitopeaderoyeje7694]

You taught me in 30 min what my teacher couldnt in 3weeks

[@rsm0411]

IM SOBBING SO HARD. I LITERALLY FAILED MY MATH TEST AND THE UPCOMING TEST IS ALL IM COUNTING ON TO PULL UP MY GRADE FOR MY GRADING ON WRITTEN WORKS. THANK YOU, I UNDERSTAND IT NOW! OH MY GOSHH

[@sss-mr1hc]

I HAVE MATH TOMM BRO SND I BARLY UNDERSTAND HIM IM SO COOKED

[@not_anotheridiot.]

@@sss-mr1hc I HAV EMATH TMROW AND I HAVE LIEK 12 CHAPS LEFT

[@yourhabibi1393]

His videos about math makes mo comfortabl hehe

[@loscampesinosgirl]

at 1:35, is the -2 (under x + 2 = 3) taken from the number above or is it always subtracted by - 2 in every equation ???

[@DrawWithDruux]

If you’re asking this then you might want to go back to the fundamentals of algebra, whatever you do to one side, you have to do to the other, he was isolating x by removing 2 from the left side, so he had to do it to the right side, in other words he did it because of the number above

[@barbi3fr3sh06]

2:59 how did you get that 2(x-3)^2 from 2(x^2 -6x +3^2)?

[@Cloh-e7d]

Just copy over the number outside the brackets, in this case the number is 2. Then copy the x and the last number in the bracket, but don’t copy it with ^2. Only put the ^2 outside the brackets

[@nivey.23]

I’m currently in class and my teacher sucks so this helped a lot

[@reylinbautita7552]

2:27 where did you get the nine that you multiply it to nine times two?. i hope i get a response

[@fritzangeloflores4662]

3^2 =9

[@Victoria-it2jw]

2:30 What do you mean you have added 18 to the left side? Do you read these messages? Can you please explain that? Thank you for all you do. You really have a gift of explaining math and taking the fear out of it. My anxiety level drops when I need a video & I see that it is on your channel.

[@aarony7960]

What he means is that because he factored 2 out of the equation, he needs to multiple the number he added by two to balance out the equation.

[@cazabuilders6110]

Victoria5653 pooop

[@jcp6092]

Total Idiot

[@none4765]

Wait I’ve got a question I thought that the other 4 that is on the side of the equals sign is supposed to be negative? 1:27

[@ivesphillips]

Sir, if these videos help me get a passing grade for my college algebra course, I will kiss your feet.

[@itz_peely7233]

still don't understand that 3rd one but this helped!

[@JhoanaPontay]

I honestly understood this better here than in our math class lmao

[@MusondaAmon]

I don' like those indian teachers You're the best❤

[@Sara3346]

I learned nothing from this , but heres to adding to the fifteen comments!

[@스카이블루나잇]

It confused me even more.

[@Julivickproduction]

Same here

[@VictorSeedorsky]

where is that 2 to square power disappear in the first line in 1:10 for the first example from the left side of the equation..? You mate do not explain this at all... Why?

[@keiartzmarie8276]

1:02 i think i was thought a different type of method of this cause I don't understand anything anymore!!!! I know the the formula is (b over 2) therefore -12 ÷ 2 ²= 6² then just continue to divide 6x6 i didn't know you had have find it's root too.... Ugh my brain

[@EzekielMirasol]

you're not alone.😅

[@hamzakhalid4487]

21 mins late to my finals, and relying on this 7 minute video currently💯🫡😶‍🌫️

[@hamzakhalid4487]

Giving it up on the fifth minute cuz you just made me forget the rest of the shit I learned, should’ve studied last night fr💀 Goodluck Yall anyways

[@ErwinYes]

@@hamzakhalid4487 Yo u good now bro? how was ur exam? lowkey u should get a tutor, i know someone who teaches online i thnk he'd be super useful for u next semetser

[@EldonOmondi-o9e]

Clear expression but difficult concept. Maths wow😮

[@nechelleveal8151]

Hey in 5:01 of the video, how are you getting (-5/6)^2?

[@skillbeerohan3057]

in order to complete the square, you have to take the middle coefficient (in this case, 5/3) and divide it by 2 and then square it. That would make it ((5/3) x (1/2))^2. This equald (5/6)^2. Hope that helps :)

[@stacl1173]

Got my precalculus test in a minutes so tyy

[@nixc71]

Where’s the video where you shoe the shortcut when it comes to factoring ?

[@karyle_purrrrrr]

why did you ad the root 2? 3:36

[@asubo_stickk]

bc we can't have decimal as our denominator, so in order to remove the radical sign in √2 we multiply it by √2 both numirator and denominator

[@Quran.And.Science]

Good!

[@pfarisosilimela6393]

My mister stress reliever ❤❤

[@strophosgaming5998]

Bro what

[@SharePositiveVibes1]

which app does he use?

[@BikorimanaTheoneste-xq2ov]

Thank you so much ❤

[@AliHinai-w8x]

thank u very much. very helpful

[@J1N_S1N]

1:12 what if your number is odd? the square root of 46 is gobly gob what do i put??

[@kelvin_ccp]

Majority of y'all don't know the basics, that's why it seems hard XD. Keep grinding 😂❤️

[@nicholaschryssafis5797]

The problem is he never explains conceptually what's going on, he just explains the math steps

[@miku2128]

My alg 1 eoc is in a few days. wish me luck guys!!!

[@mintjade6269]

this one is the correct method?

[@sen2933]

for the third exaple,what if the 4 is divisible by 100 which is 3 is not divisible by 145 on the video?what do i do next if 4 is divisible by 100????

[@whomstveeaha]

did you figure it out?

[@zeikozeiko7732]

wait this actually made me cry

[@AnnAlojo-iq6rv]

U are the best 👏👏

[@xaqt1]

This is so much simpler and less convoluted than normal factoring lol

[@QuangNguyen-dw9je]

1:05 What is the purpose of taking the square root of both sides? I'm sure there is a good reason but need someone to explain it to me. Thanks

[@jaimeguerrero4587]

You have to get rid of the ^2 on the left and whatever you do to one side you do to both

[@TrishaTheHuman]

Brooo I literally quit😭😭😭!! I can’t with dis no mo

[@shahidabdullah7921]

Ye casually learning this an hour before my maths exam

[@tyrodmelo]

thank you bro

[@OldLadyMapleSeed]

Thanks so much

[@Carfamily123]

Everybody confused here consult chat gpt along this video this Did the job for me🎉

[@karyle_purrrrrr]

why did you add the radical 2?

[@infini_T]

Time to crunch for final exams tomorrow 😊

[@Abel-vb1zu]

My teacher had taught me to devide all by 2 on the second one

[@jackgriffin702]

This is how I’m passing

[@kelvin_ccp]

Thanks man 🙏

[@Hhhshggg781]

my calc professor suddenly decided for our last quiz before our final we aren’t allowed to use calculators so when computing inflection points, so we cant use the quadratic formula I hate this class 😭

[@MegaTechno]

Thanks!

[@joslinsmith2834]

Currently crying.

[@jeremiahogunfuwa9187]

Thank you

[@iiiiidgyy]

shits gon be real, thank you

[@Viva_Cynefin]

Oh I'm COOKED 😭🙏

[@ErwinYes]

Nah Bro u aint cooked in math, u want my tutor's number? He will save your life bro i went from a 60 to 93. he teaches online

[@eduardlawrenceloop47]

​@@ErwinYeswow that's good

[@Annierey6]

Here I am doing my homework at 1 am that is due within the next hours

[@kristiandelosreyes4466]

Can anyone solve the equation 3x² + 6x - 1 = 0, my question is how do you solve it if the square root sign is at the dinaminator?

[@jasminpearce3104]

try using the method of solving the quadratic equation instead

[@CODKraken7000]

bro u really asked a math problem in the KZbin comments section? 💀💀💀💀 try MATHAWAY

[@modspeed]

bro mightve saved my grade

[@ccnbb_yvb]

Why do I even have to learn this math? I don't want to be a fucking mathematician in the future. The job I wanted doesn't involve this kind of math. School prolly messing with my brain

[@loscampesinosgirl]

the multiple comments lmaooo

[@loscampesinosgirl]

i see u girl. how did it go

[@ccnbb_yvb]

@@loscampesinosgirl i'll update you about my scores, they will reveal it next week

[@ccnbb_yvb]

@@loscampesinosgirl i just did some guessing in some questions 😭

[@ccnbb_yvb]

@@loscampesinosgirl hey so i failed 🥲 i got 21/30

[@sanvigoyal]

......Question How to complete the square of x²+px+y²+py=0

[@zuhakhan7990]

How do you do second provlem!???

[@camleborgne6121]

Number 3 is crazy, what makes me mad is we aren't allowed to use quadratic formula when either one will give me the correct answer

[@MRaverage-s3g]

dam bruh i need an explaination on question like "Express each of the folloing in the form of a-p (x + q)^2"

[@algtkz]

Thank u!

[@MariamAhmedHussein]

thank uuuu this helped alot

[@KeejeMass]

I don’t get it

[@Whateverdawg12]

We definitely failing 🗣️🔥🔥

[@t-sauce2497]

Just use the formula: a(x + b/2)^2 -(b/2)^2 + c

[@Whateverdawg12]

@@t-sauce2497 the thing is they ask you specifically to solve by completing the square

[@ErwinYes]

BRO I KNOW SOMEONE WHO CAN SAVE U. U WANT MY TUTORS NUMBER?? HE HELPED ME GO FROM a C to an A

[@superjumpbros64]

I hate math, like actually hate this stuff now. Im trying to solve a logarithm and cant get the quadratic

[@Kathrinewinters]

How do you solve 2x²+x-28=0?

[@JhoanaPontay]

Im def cooked this school year 🧍

[@eipimath]

Thanks for sharing! I posted a video on completing the square using remainder theorem. Hope to get your opinion on it.

[@froggy8711]

im totally bombing my final, amazing resources as always but mannnnnn

[@ErwinYes]

Bro in september, U gotta get a tutor for Math, I know someone who helped me go from a 60 to a 92. He teaches online lowkey u want his contact?

[@froggy8711]

@@ErwinYes nah, i did fine on the final yayy, thanks for the offer tho! :)