Question

помогите пожалуйста ,срочно 15 баллов!!!

Answer 1

=2х/(у(у+х)) - 2у/(х(х+у))=
=(2х^2-2у^2)/(ху(х+у))=
=2(х-у)(х+у)/(ху(х+у))=
=2(х-у)/ху

Answer 2

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