Question

Calcule as potências:
A)
$( - 2) {?}^{7}$
B)
$( \frac{2}{5} ) {?}^{3}$
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Answer 1

Oie, Td Bom?!

A)

$= ( - 2) {}^{7} = - 2 {}^{7} = - 128$

B)

$= ( \frac{2}{5} ) {}^{3} = \frac{2 {}^{3} }{5 {}^{3} } = \frac{8}{125}$

Att. Makaveli1996