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Math Help - percentile help

  1. #1
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    percentile help

    F(n(p)) = 2n + 2/n -4
    so p = the same

    how does 2n + 2/n -4
    become 2n^2 -n(4+p) + 2

    also
    n= .25(4+p+(p^2 + 8)^1/2))
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  2. #2
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    Quote Originally Posted by statman101 View Post
    F(n(p)) = 2n + 2/n -4
    so p = the same

    how does 2n + 2/n -4
    become 2n^2 -n(4+p) + 2

    also
    n= .25(4+p+(p^2 + 8)^1/2))
    This is incomprehensible to me. Please post the whole question exactly as it's written from wherever you got it from.
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