Subtract: x+1x−3−x−1x+3\dfrac{x + 1}{x - 3} - \dfrac{x - 1}{x + 3}x−3x+1−x+3x−1.
8xx2−9\dfrac{8x}{x^2 - 9}x2−98x
2x2−9\dfrac{2}{x^2 - 9}x2−92
8x2−9\dfrac{8}{x^2 - 9}x2−98
8x−6x2−9\dfrac{8x - 6}{x^2-9}x2−98x−6