Question

Спростити вираз
Помогите плз!

Answer 1

$\frac{2x}{x+y} =\frac{4x^2}{x^{2}-y^2}$

$\frac{2x}{x+y} -\frac{4x^2}{x^2-y^2} =0$

$\frac{2x*(x-y)-4x^2*1)}{(x+y)(x-y)} =0$

$\frac{2x^2-2xy-4x^2}{(x+y)(x-y)}=0$

$\frac{-2(x+y)}{(x+y)(x-y)} =0$

$\frac{2}{y-x} =0$