Practice problem
Simplify x2−1x+1÷xx−1\frac{x^2-1}{x+1}\div \frac{x}{x-1}x+1x2−1÷x−1x if x≠−1,0,1x\neq-1,0,1x=−1,0,1.
x2−1x\frac{x^2-1}{x}xx2−1
(x−1)2x\frac{(x-1)^2}{x}x(x−1)2
x2x+1\frac{x^2}{x+1}x+1x2
xxx
Type a concept, like “slope” or “photosynthesis”.