Jon P. answered 02/11/15
Tutor
5.0
(173)
Knowledgeable Math, Science, SAT, ACT tutor - Harvard honors grad
5 5
--------- - --------- =
x2 - xy y2 - xy
5 5
---------- - ----------- =
x (x - y) y (y - x)
5 5
---------- + ----------- =
x (x - y) y (x - y) 1 ( 5 5 )
----- ( --- - --- ) =
x - y ( x y )
1 ( 5y 5x )
----- ( --- - --- ) =
x - y ( xy xy ) 1 ( 5y 5x )
----- ( --- - --- ) =
x - y ( xy xy ) 5 y -x
----- * ----- =
x - y xy y -x 5
----- * ----- =
x - y xy 5
-1 * ---- = -5/xy
xy