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Math Help - Square root inside square root equation

  1. #1
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    Square root inside square root equation

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  2. #2
    Super Member TheChaz's Avatar
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    Re: Square root inside square root equation

    Quote Originally Posted by Remriel View Post
    Square both sides.
    Subtract x
    Square both sides (don't forget to "FOIL"/distribute)
    Subtract 5
    Check for extraneous roots
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  3. #3
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    Re: Square root inside square root equation

    Quote Originally Posted by Remriel View Post
    If \sqrt{\sqrt{x+5}+x~}=5 then \sqrt{x+5}=25-x.
    Now you finish it off.
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  4. #4
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    Re: Square root inside square root equation

    Oh wow, I was making a really stupid mistake on this easy problem. Thanks.
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