Simplify: 6x2−18xx2−9\frac{6x^2 - 18x}{x^2 - 9}x2−96x2−18x
6xx−3\frac{6x}{x-3}x−36x
6xx+3\frac{6x}{x+3}x+36x
xx+3\frac{x}{x+3}x+3x
6x+3\frac{6}{x+3}x+36