Practice problem
Which of the following equals x2+x−12x2−x−12\frac{x^2+x-12}{x^2-x-12}x2−x−12x2+x−12?
111
−1-1−1
(x+4)(x−3)(x−4)(x+3)\frac{(x+4)(x-3)}{(x-4)(x+3)}(x−4)(x+3)(x+4)(x−3)
x+4x+3\frac{x+4}{x+3}x+3x+4
Type a concept, like “slope” or “photosynthesis”.
