Question

7xy/x^2-4xy+4y^2 * 3x-6y/14y^2

Answer 1

$frac{7xy}{x^2-4xy+4y^2} *frac{3x-6y}{14y^2}=frac{21xy(x-2y)}{14y^2(x-2y)^2}=frac{3x}{2y(x-2y)}$