Question 204604
Simplify:
{{{((x-y)/(x+y))+((x+y)/(x-y)) = ((x-y)(x-y)+(x+y)(x+y))/(x-y)(x+y)}}}={{{((x^2-2xy+y^2)+(x^2+2xy+y^2))/(x^2-y^2)}}}={{{(2x^2+2y^2)/(x^2-y^2) = highlight(2((x^2+y^2)/(x^2-y^2)))}}}