Question

Скортатие дроби:
$\frac{2x - 2y - x {}^{2 } + {y}^{2} }{ {x}^{3}y - {2x}^{2}y + x {y}^{3} }$
$\frac{ac - 2bc - ab + {b}^{2} + {c}^{2} }{bc + 2ab - ac - {b}^{2} - {a}^{2} }$
Спасибо за ранее!! ​

Answer 1

1)2x-2y-x^2+y^2/x^3 y-2x^2 y+xy^3=-x+y/x^2-2x+y^2
2)ac-bc-ab+b^2+c^2/bc+2ab-ac-b^2-a^2=-a+b+c^2/-a(2-a)-b