Question
Express the following in power notation: $\Big(\frac{-8}{5}\Big)^3$
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Answer
$\Big(\frac{-8}{5}\Big)^3=\frac{-8}{5}\times\frac{-8}{5}\times\frac{-8}{5}$ $=\frac{(-8)\times(-8)\times(-8)}{5\times 5\times 5}$ $=\frac{-512}{125}$
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