Which of the binomials below is a factor of this trinomial? x2 + 13x + 42 a. x - 7 b. x + 7 c. x + 84 d. x2 + 12

First factor x² + 13x + 42.

x² + 6x + 7x + 42

x(x + 6) + 7(x + 6)

The factors are : (x + 7)(x + 6)

Solution: B. x + 7

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.