Respuesta :

altavistard
x= -2, so (3x^3)^2 = (3[-2]^3)^2 = (-24)^2 = 576.

[ y^(-2) ]^2 = y^(-4), or 1 / [y^4].

When y=5, we get   1 / [5^4] = 625

Thus, the whole expression reduces to 576 / 625.