Question

Simplifique as seguintes expressões:

Answer 1

Simplifique as expressões.

a)

$\frac{x^{3}+x^{2}-4x-4}{x^{2}-4}=$

$\frac{x^{2}(x+1)-4(x+1)}{x^{2}-4}=$

$\frac{(x+1)(x^{2}-4)}{x^{2}-4}=$

$x+1$

b)

$\frac{5(x+2)^{2}-3y(x+2)^{2}}{x^{2}+4x+4} =$

$\frac{(5-3y)(x+2)^{2}}{(x+2)^{2}}=$

$5-3y$