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Math Help - Help understanding solution to problem involving roots

  1. #1
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    Jan 2009
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    Help understanding solution to problem involving roots

    I have a problem:

    ux^a=x

    The solution shows:

    ux^a=x;x^a-1=1/u;x=(1/u)^1/(a-1)

    I understand everything except how they got the a-1 exponent on x in the first step. Could someone help me understand better?

    Thanks!
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  2. #2
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    Joined
    Jan 2009
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    I think I figured it out

    The a-1 exponent comes from divind both sides by x and then simplifying using the division exponent rule x^a/x = x^a-1

    Is that right?
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