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Thread: simple equation

  1. #1
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    simple equation

    Prove that the following number is natural where n is a natural number:
    sqrt(n^2+(n+1)^2+(n(n+1))^2)
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  2. #2
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    Re: simple equation

    see if the expression can be written as

    $n^2+(n+1)^2+(n(n+1))^2=\left(n^2+ a n+b\right)^2$ for some constants $a$ and $b$
    Thanks from topsquark
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