Question

(x + y)/(x ^ 2 + xy + y ^ 2) + (x - y)/(x ^ 2 - xy + y ^ 2) - (2y ^ 3)/(x ^ 4 + x ^ 2 * y ^ 2 + y ^ 4)​

Answer 1

If the * is supposed to be multiplication, then my answer is : 2(x-y)/(x^2+y^2-xy)

Explanation: