Question

fatorando x^2-y^4, obtemos:
a)( x-y)(x^2+Y^2)
b) (x-y^2)(x^2+y^2)
c) (x+y^2)(x-y)
d)(x+y^2)(x-y^2)

Answer 1

$x^2 - y^4 \\ \\ \\ => (x - y^2)(x + y^2)$

$=> (x + y^2)(x - y^2)$

Resposta letra d) (x + y^2)(x - y^2)