Find the sum: 2x2−x+1x2−1\frac{2}{x^2-x} + \frac{1}{x^2-1}x2−x2+x2−11.
3x+2x(x−1)(x+1)\frac{3x+2}{x(x-1)(x+1)}x(x−1)(x+1)3x+2
x+2x(x−1)(x+1)\frac{x+2}{x(x-1)(x+1)}x(x−1)(x+1)x+2
3x2−x−1\frac{3}{x^2-x-1}x2−x−13
2x+1x(x−1)(x+1)\frac{2x+1}{x(x-1)(x+1)}x(x−1)(x+1)2x+1