Help plzzz.

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Ineed someone to me answer my question i have to have this done and knocked out

Factor the trinomial below. 12x^2 - 32x - 12 a. 4(3x+3)(x-1) b. 4(3x+1)(x-3) c. 4(3x+6)(x-2) d. 4(3x+2)(x-6)