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Compute$$\left(\frac13 \right)^{-3} - \left(-\frac13 \right)^{-3}.$$

 Sep 29, 2021
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Using negative exponent and reciprocal rules, we have:

27-(-27)

The second 27 is negative since if we have an odd exponent and a negative base the result is negative.

So the answer is 54

Hope this helpssmiley

 Sep 29, 2021

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