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    (Original post by p29)
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    Use the fact that \sqrt{x} = x^{\frac{1}{2}} and \frac{1}{x^a} = x^{-a}.
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    (Original post by Zacken)
    Use the fact that \sqrt{x} = x^{\frac{1}{2}} and \frac{1}{x^a} = x^{-a}.
    so 3x^-1/2?
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    (Original post by p29)
    so 3x^-1/2?
    Yep.
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    rationalise the denominator


    3/√x times by √x/√x = 3√x/x
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    i would not say that either of the above answers is simpler, just different :teehee:
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    (3√x)/x or 3x^-1/2
 
 
 
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