Subtract 5x2−1−1x+1\frac{5}{x^2 - 1} - \frac{1}{x+1}x2−15−x+11
4−xx2−1\frac{4-x}{x^2-1}x2−14−x
6−xx2−1\frac{6-x}{x^2-1}x2−16−x
4+xx2−1\frac{4+x}{x^2-1}x2−14+x
6+xx2−1\frac{6+x}{x^2-1}x2−16+x