Question

1/x+y-1/x-y+2x/x^2-y^2

Answer 1

(x-y)-(x+y)/(x+y)(x-y)+2x/x^2-y^2
x-y-x-y/x^2-y^2+2x/x^2-y^2
-2y/x^2-y^2+2x/x^2-y^2
2x-2y/x^2-y^2