Question

alguém por favor
x²-xy/xy+y:xy-y²/x²+x

Answer 1

Oi. Segue: 

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