Simplify: x2−x−12x2−2x−8\dfrac{x^2 - x - 12}{x^2 - 2x - 8}x2−2x−8x2−x−12 (assume x≠4,−2x \neq 4, -2x=4,−2).
x+3x+2\dfrac{x + 3}{x + 2}x+2x+3
x−3x−2\dfrac{x - 3}{x - 2}x−2x−3
x−4x+2\dfrac{x - 4}{x + 2}x+2x−4
x+3x−4\dfrac{x + 3}{x - 4}x−4x+3