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    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

    Little help please?
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    (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

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

    The question is x\sqrt{2}+x\sqrt{8}=24

    NOT \sqrt{2x}+\sqrt{8x}=24 or whatever
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    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!
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    (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.
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    Yeh! I've got it now! Thanks a lot... Haha.. such as silly mistake! Cheers
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    (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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