Multiply: x2−y2x2+xy⋅xx−y\frac{x^2 - y^2}{x^2 + xy} \cdot \frac{x}{x-y}x2+xyx2−y2⋅x−yx
x+yx\frac{x+y}{x}xx+y
111
x−yx+y\frac{x-y}{x+y}x+yx−y
x+yx+y\frac{x+y}{x+y}x+yx+y