Question

Упростите выражение:
((4x-4y)^2)/(2y^2-2x^2)

Answer 1

$\frac{(4x-4y)^2}{2y^2-2x^2}=\frac{16(x-y)^2}{2(y^2-x^2)}=$

$\frac{16(x-y)^2}{2(y-x)(y+x)}=-\frac{16(x-y)^2}{2(x-y)(y+x)}=$

$-\frac{8(x-y)}{x+y}$