Question

Помогите плиз!!!!!!!!!!

Answer 1

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