Question

Сократите дробь 2х-2у-х^2+y^2/х^3y-2^2y^2+xy^3
Плиз)))

Answer 1

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