Answer: (r + 4)(r + 8) Alright, I would first rearrange the equation by bringing all your terms to one side by adding 12r and 32 to both sides. This will result in the rearranged equation: You can then factor the equation into the two binomials: (r + 4)(r + 8). 4 + 8 equals the b term, 12, and 4 x 8 equals the c term, 32.