Question

Which of the following represents the factorization of the trinomial below?

x2 +9x - 22
O A. (x+20)(x - 2)
O B. (x+11)(x - 2)
O C. (x - 11)(x - 2)
O D. (x-20)(x-2)

Answer 1

For that you can use the foil method to check the choices given are equal to x2+9x-22. Foil stands for First term Outside term Inside term Last term. We can directly cross off a because it


doesn’t equal to x2+9x-22. Let’s check choice c you get x2-2x-11x+22 that doesn’t give us x2+9x-22 . You can also directly cross out choice d . Only b is the correct answer.