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Math Help - Simplify using only postivie exponents (picture of problem included)

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    Simplify using only postivie exponents (picture of problem included)

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    Re: Simplify using only postivie exponents (picture of problem included)

    Quote Originally Posted by hopex123 View Post
    What have you tried?
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    Re: Simplify using only postivie exponents (picture of problem included)

    I don't understand how to deal with the -3 exponent.
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    Re: Simplify using only postivie exponents (picture of problem included)

    Quote Originally Posted by hopex123 View Post
    I don't understand how to deal with the -3 exponent.
    \displaystyle a^{-3} = \left(a^{-1}\right)^3 = \left(\frac{1}{a}\right)^3
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    Re: Simplify using only postivie exponents (picture of problem included)

    And from that, important for this problem \left(\frac{a}{b}\right)^{-3}= \left(\frac{b}{a}\right)^3= \frac{b^3}{a^3}
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