Question

2^-3 * (-7)^-3

Please anwer the question
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Answer 1

${2}^{ - 3} \times { - 7}^{ - 3} \\ {2 - 7}^{ - 3} \\ { - 5}^{ - 3}$

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Answer 2

${2}^{ - 3} \times ( { - 7)}^{ - 3}$

$= \frac{1}{ {2}^{3} } \times \frac{1}{ {( - 7)}^{3} }$

$= \frac{1}{8} \times \frac{1}{ - 343}$

$= - \frac{1}{2744}$