Simplify: x−3x2−x−6\dfrac{x-3}{x^2 - x - 6}x2−x−6x−3 for x≠3,−2x \neq 3, -2x=3,−2.
1x+2\dfrac{1}{x+2}x+21
1x−3\dfrac{1}{x-3}x−31
x−3x+2\dfrac{x-3}{x+2}x+2x−3
x+2x + 2x+2