Practice problem
Assume x≠1x \not= 1x=1. Simplify: 2x+1x−1−1\frac{2}{\frac{x+1}{x-1} - 1}x−1x+1−12
x−1x-1x−1
x+1x+1x+1
2x\frac2xx2
x+2x+2x+2
Type a concept, like “slope” or “photosynthesis”.
