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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Originally Posted by nexer 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: $\displaystyle \frac{x^a}{x^b}=x^{a-b}$ Example: $\displaystyle \frac{x^{-3}}{x^{-5}}=x^{-3-(-5)}=x^2$ Your example: $\displaystyle \frac{7^{-3}}{7^3}=7^{-3-3}=7^{-6}=\frac{1}{7^6}$
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.
Originally Posted by nexer 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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