Question

qual é o valor de (-2/3) elevador a -2​

Answer 1

2,25

-3/2 × 3/2 = 9/4

= 2,25

Answer 2

Espero ter ajudado.

$\left(-\frac{2}{3}\right)^{-2}\\\\\frac{1}{\left(-\frac{2}{3}\right)^2}\\\\\frac{1}{\frac{4}{9}}\\\\\frac{9}{4} \ { \ :\quad }\:2.25$