For this case we have the following polynomials: 16x ^ 2 - 16 -12x ^ 2 - 12x + 12 Adding we have: (16x ^ 2 - 16) + (-12x ^ 2 - 12x + 12) We group in similar terms: x ^ 2 (16-12) + x (-12) + (-16 + 12) Rewriting we have: 4x ^ 2 - 12x - 4 Answer: 4x ^ 2 - 12x - 4 option A