Question

Упростите (х^2*у^2-4у^2)/(4ху)*(х^2*у)/(2ху-х^2*у)

Answer 1

$frac{ x^{2} y^{2 -4 y^{2} } }{4xy} * frac{ x^{2}y}{2xy- x^{2} y} = frac{ y^{2 (x-2)(x+2)} }{4xy}* - frac{ x^{2} y}{xy(x-2)} =- frac{y(x+2)}{4}$