Question

qual o valor da expressão (2/3) ² - ³√-8

Answer 1

Oie, tudo bom?

$= ( \frac{2}{3} ) {}^{2} - \sqrt[3]{ - 8} \\ = \frac{4}{9} - ( - 2) \\ = \frac{4}{9} + 2 \\ = \frac{4 + 18}{9} \\ \boxed{ = \frac{22}{9} }$

Att. NLE Top Shotta