Let f(x) = -4 + 4x + 8x^2. If h ≠ 0, then the difference quotient can be simplified as f(x+h) - f(x) / h = Ah + Bx + C, where A, B, and C are constants. (Note: It's possible for one or more of these constants to be 0.) Find the constants: A = , B = , and C = . Use the simplified expression to find f'(x) = lim h->0 f(x+h) - f(x) / h = . Finally, find each of the following: f'(1) = , f'(2) = , and f'(3) = .