Simplify the expression: x2−x−6x−3\frac{x^2-x-6}{x-3}x−3x2−x−6 (assume x≠3x \neq 3x=3).
x+2x + 2x+2
x−2x - 2x−2
x+6x + 6x+6
x2−2x^2 - 2x2−2