Question

Efetue as seguintes frações:

Answer 1

A) $\frac{10xy}{10x^2 + 20xy}$ = $\frac{10xy}{10x(x+2y)}$ = $\frac{y}{x + 2y}$

B) $\frac{x^2 - 2xy + y^2}{3x - 3y}$

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

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

D) $\frac{x^2 - 10x + 25}{2x -10} = \frac{(x - 5)^2}{2(x - 5)} = \frac{x - 5}{2}$