Practice problem
Simplify x2−1y2−1⋅y+1x+1.\frac{x^2-1}{y^2-1} \cdot \frac{y+1}{x+1}.y2−1x2−1⋅x+1y+1.
x2−yy2−x\frac{x^2-y}{y^2-x}y2−xx2−y
x−1y−1\frac{x-1}{y-1}y−1x−1
x2y−1xy2−1\frac{x^2y-1}{xy^2-1}xy2−1x2y−1
xy\frac{x}{y}yx
Type a concept, like “slope” or “photosynthesis”.
