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Math Help - Negative power division

  1. #1
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    Negative power division

    Hi can anyone help me? what do you do when dividing two different numbers when one of the powers is negative?

    for example 7^-3/7^3
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  2. #2
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    Quote Originally Posted by nexer View Post
    Hi can anyone help me? what do you do when dividing two different numbers when one of the powers is negative?
    Hi nexer,

    Remember this rule:

    \frac{x^a}{x^b}=x^{a-b}

    Example:

    \frac{x^{-3}}{x^{-5}}=x^{-3-(-5)}=x^2

    Your example:

    \frac{7^{-3}}{7^3}=7^{-3-3}=7^{-6}=\frac{1}{7^6}
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  3. #3
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    so say if there was a negative power on the bottom it would be a positive as two negatives make a positive, and thank you for the help.
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  4. #4
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    Quote Originally Posted by nexer View Post
    so say if there was a negative power on the bottom it would be a positive as two negatives make a positive, and thank you for the help.
    Yes, that's exactly it
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