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# Ehm... Little help? :) Watch

1. For the life of me, I can't figure this out!

sqrt(2)x + sqrt(8)x = 24

The solution is 4sqrt(2), however I'm not too sure how to get it

This is what I'm doing...

sqrt(2x) + 2(sqrt(2x) = 24
3sqrt(2x) = 24
sqrt(2x) = 8
2x = 64
x = 32

2. (Original post by JustAnotherQ)
For the life of me, I can't figure this out!

sqrt(2)x + sqrt(8)x = 24

The solution is 4sqrt(2), however I'm not too sure how to get it

This is what I'm doing...

sqrt(2x) + 2(sqrt(2x) = 24
3sqrt(2x) = 24
sqrt(2x) = 8
2x = 64
x = 32

That's because the x is not under the square root and you're treating the question as if it is!

The question is

NOT or whatever
3. Ohh....! I understand now.. For some reason I thought you had to times the x and the square root together as the x was behind the square root in the question.. Silly me... I'll give it another go, thanks!
4. (Original post by JustAnotherQ)
Ohh....! I understand now.. For some reason I thought you had to times the x and the square root together as the x was behind the square root in the question.. Silly me... I'll give it another go, thanks!
Nope, the x is outside the bracket so it doesn't go under the root.
5. Yeh! I've got it now! Thanks a lot... Haha.. such as silly mistake! Cheers
6. (Original post by JustAnotherQ)
Yeh! I've got it now! Thanks a lot... Haha.. such as silly mistake! Cheers
No problem.

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