Question

Função Exponencial d) ( - 2 /3)³ ?

Answer 1

$( \frac{-2}{3})^3= \frac{-2}{3} . \frac{-2}{3} . \frac{-2}{3} = \frac{-8}{27}$

Answer 2

veja...

$(- \frac{2}{3} )^3=(- \frac{2}{3} )(- \frac{2}{3} )(- \frac{2}{3} )=- \frac{8}{27}$