Question

y2-yz+xz-y2/x2+yz-xz-y2. Сократите дробь

Answer 1

$frac{-yz+xz}{x^{2}+yz-xz- y^{2} }$

$frac{-z(y-x)}{(x-y)(x+y)-z(x-y)}$

$frac{-z(-(x-y))}{(x-y)(x+y-z)}$

$frac{z}{x+y-z}$