1/3 times square root of 2x = 2, many don’t FULLY get this!

[@olivemd]

I think doing your questions has worked. I automatically got the answer in my head without thinking about which method to use. My 73 year old brain is getting faster. Thanks.

[@Kleermaker1000]

What kind of drink did you swallow? :)

[@susanm1109]

First multiply both sides by 3, so the square root of 2x is 6. Then square both sides, so 2x is 36. Divide both sides by 2: x=18

[@susanm1109]

@@juliecranford534 Thank you for catching that and for letting me know. I’ve edited it now.

[@chesswizard05]

1/3(square root of 2x)=2 Multiply both sides by 3 Square root of 2x =6 Square both sides 2x=36 X=18

[@TheRockMorton]

That's how I solved for x. But failed to verify answer.

[@kennethdias9988]

18 is what I got off the top of my head

[@vincentrobinette1507]

The way this was solved on the tablet is EXACTLY the way I solved this in my head!

[@robpatterson2861]

I love your examples! This is a terrific one! Thanks❤

[@thomasharding1838]

A negative answer is not under consideration because you are not looking for the square root of X (or 2X) but the square root was defined as TWO. Because it is positive, its square cannot be negative. Therefore, X is positive.

[@devonwilson5776]

Greetings. The value for × is 18. From the expression given it should be realized that what we have is simply the square root of 2x divided by 3 equals 2. That should result in the square root of 2x = 6 after multiplying by 3, thereafter you square both sides to get 2x = 36 and after that, you divide both sides by 2 to get x=18.

[@gerardb.ducoudray8881]

greetings 2u2

[@pennstatefan]

Multiply both sides by 3 and one is left with(2x)^1/2 = 6. then, one squares both sides and one is left with 2x = 6^2, where x = 18

[@bushputz]

Had the answer in about 15 seconds, but started doubting myself because it seemed too simple.

[@thenetsurferboy]

Only a grade grade 7 zombie would get that wrong

[@bigdog3628]

super simple multiply both sides by 3 this leaves us with a 6 on the right hand side and a sqroot on the left. so square both sides then divide by 2 (the coefficient of the x term in this problem). This leaves us with x = 18. Now, since we squared a root we have to prove the answer. 2 * 18 is 36. The Sqroot of 36 is 6. Now we multiply 1/3 by 6, which is the same as saying 6/3. Which is 2 and proves that x = 18.

[@aryusure1943]

Reviewing what I learned the first time (3 months ago) in this video I can say that I am now part of the 10% who can figure that out with the correct procedure. Thanks!

[@JohnHughesChampigny]

multiply both sides by 3, square both sides*, now you have 2x=36 so x=18. (* because if a=b then a^2 = b^2)

[@mauriziograndi1750]

To be true that 1/3 is equal to 2 the only prerequisite is that whatever is under the square root sign has to be 36. So x must be 18. Then the resulting square root is 6 and 1/3 of 6 = 2.

[@pysankar]

I just asked myself a few questions to get to the right answer. What number is two a third of? Six. Six is the square root of what number? 36. Two times what number equals 36? 18.

[@darrylsmith-oy7vp]

😃🤗 So much fun! Refreshing.

[@johnnyllooddte3415]

sq rt 2x = 6 sq rt 36=6 36/2 =x x =18 best i can figure

[@aryusure1943]

I got the answer after the first step, checked my solution which was right but I was not sure about the method for getting rid of the square root. So you were right. I did not get the whole thing. ;) Still need to practice.

[@user-qv2dd8ex8k]

So I remember you have to check both the positive and negative numbers for the correct answer!!! So I hear what he is saying and disagree on the throwing out the negative all the time because sometimes they both work.

[@user-qv2dd8ex8k]

Sometimes both positive and negative results work so check both numbers!!!

[@harrymatabal8448]

Okay lets start at the beginning

[@mingkee27]

It sounds complicated... Get rid of 1/3 first with *3 1/3 *3√2x = 2*3 >>> √2x = 6 Now process square root 2x = 6² >>> 36 Divide by 2 x = 36/2 >>> 18 x = 18

[@cscms28]

16, i meant 18. honest. figured that must find the square root. 2 is third of 6, so the square root must be 6. 6x6 is 36, half that is 18. so x=18

[@danielnelson9411]

We know something divided by 3 is 2. That would be 6. The square root of something is 6. That would be 6 squared or 36. What times 2 is 36? 18 There. I showed my work. :^)

[@bertarndt9953]

Have it I less then a minute. My head is still working at 70yrs old.

[@Bizmyurt]

You see it directly

[@rodrodrigues5402]

What a silly claim that many will not know where to start!

[@homeauburnRaja-hm3gq]

2x=36 or x=18

[@vineyanand-ed7hg]

3 sec question

[@MaggieDaniels-nc6vg]

X=18

[@Yvonnethatgirl]

×=18

[@danieldennis9831]

√2x=6 2x=36 x=18

[@ernestofelix7149]

18

[@jimwetzel1635]

x = 18

[@bobcornwell403]

I came up with x = 18.

[@mulawbelay9736]

What about PEMADS

[@TokyoXtreme]

The square root symbol is considered E for exponent.

[@seibertmccormick184]

Thanks. I didn't get the answer. I learned something. Thanks.

[@stevenjohnson1143]

18=x

[@duncanmcdane388]

Dang, I should have paid more attention in high school 😞

[@janeoleary8454]

Would not know WHERE TO BEGIN

[@randallgreen4084]

I got x=18

[@pennymoreland9602]

This was always a problem for me 😢.

[@user-nh8oh9hu9b]

3

[@janeoleary8454]

This is beyond my capacity

[@Mark-kt5mh]

Maybe for now, don't give up

[@janeoleary8454]

@@Mark-kt5mh too late !!! But I have learned other things this past week from these videos. I never ever took higher math in HS. I'm 75 and can now do SOME ALGEBRA

[@robduijf2752]

​​@@janeoleary8454It's never too late! You don't have to become a genius, but solving these math problems do stimulate the neurons and the neural network in that wonderful biological computer inside your skull!

[@thenetsurferboy]

You never reached grade 7?

[@mulawbelay9736]

6 is the answer

[@Ca_milo_G]

9

[@georgeparsons7338]

X=18

[@ajsaus4825]

18

[@MolDo57]

X=18

[@ragehelsel]

18

[@anthonydenning5988]

18

[@TheMaui2020]

18

[@user-ec9ut2qr2s]

18