Question

Упростите выражение. 4x/(x-y)^2-2/x-y

Answer 1

=4x-2x+2y/(x-y)^2 =2(x+y)/(x-y)^2=2(x+y)/x^2-2xy+y^2=2(x+y)/(x+y)^2-4xy=2/x+y-4xy

Answer 2

По-моему 4х-2х-2у,а?

Answer 3

Нет

Answer 4

(х-у)^2=x^2-2xy+y^2

Answer 5

(4х/х-у)^2-2/х-у=4х^2-4ху-2(х^2-2ху+у^2)/(х-у)(х-у)^2=4х^2-4ху-2х^2+4ху-2у^2/(х-у)(х-у)^2=
(2х^2-2у^2)/(х-у)(х-у)^2=2(х^2-у^2)/(х-у)(х-у)^2=2(х-у)(х+у)/(х-у)(х-у)^2=2(х+у)/(х-у)^2.

Answer 6

спасибо огромное вам