x(cubed)+11x(sq)-28x note that the last term has an x. This means that one of the factors is going to have 2 x's. note that that the first term is cubed. This means that one of the factors is gonig to have an x(sq). note that the both signs are positive. This manes that both factors will have positive signs. Now we need the factors of 28 that add up to 11. These happen to be 7 and 4. (x(sq)+4x)(x+7) (x(sq)+7x)(x+4) Are both correct answers.