Question

Simplifique a expressão
$x^{2}+ xy* x^{2} - y^{2}$

Answer 1

$x^{2}+ xy* x^{2} - y^{2} \\ \\ \\ x^{2}+ x^3y - y^{2} \\ \\ x^2 + y(x^3 - y) \\ \\=> x^3y +x^2 - y^2$

Answer 2

x^4 - x^2y^2 + x^3y - y^3