Question 681764
{{{(1/(x-y)) - (2/(x^2-y^2)) + (1/(x+y))}}}


LCD = x^2-y^2

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


{{{(2x-2)/(x^2-y^2)}}}


{{{(2(x-1))/(x^2-y^2)}}}