Question

(x³+xy²/x³y²-x²y³) : (x²y+x²/x³-xy²)=?

Answer 1

$\frac{\frac{x^3+xy^2}{x^3y^2-x^2y^3}}{\frac{x^2y+x^2}{x^3-xy^2}}= \\ \\ \frac{(x^3-x y^2) (x^3+x y^2)}{(x^2 y+x^2) (x^3 y^2-x^2 y^3)}= \\ \\ \frac{(x^2+y^2) (x+y)}{x^2 y^2 (y+1)}$