Simplify x3−y3x−y\frac{x^3-y^3}{x-y}x−yx3−y3.
x2−xy+y2x^2-xy+y^2x2−xy+y2
x2+xy+y2x^2+xy+y^2x2+xy+y2
(x−y)2(x-y)^2(x−y)2
x2−y2x^2-y^2x2−y2