Question

(-2)elevado a 2
(2/3) elevado a 2

Answer 1

$(-2)^2\to~~(-2).(-2)\to~~ \large\boxed{ +4}\\\\\\ \left( \dfrac{2}{3} \right)^2\to~~ \dfrac{2^2}{3^2} \to~~ \dfrac{2.2}{3.3} \to~~ \large\boxed{ \dfrac{4}{9} }$