Question

(-6/10)² . (2/5)² = necessitamos essa

Answer 1

(36/100) . (4/25)
144/2500
simplifica o numerador e o denominador por 4 
36/625

Answer 2

$(\dfrac{-6}{10}) * ( \dfrac{2}{5} )^2 \\ \\ \\ \dfrac{6}{25} * \dfrac{4}{25} => \dfrac{36}{625}$