Question

Which of the binomials below is a factor of this trinomial?

x2 + 2x-35

A. x+7
B. x+1
C. x-1
D. X-7

Answer 1

Answer: A. x+7

Explanation:

Answer 2

A

Explanation:

Given

x² + 2x - 35

Consider the factors of the constant term (- 35) which sum to give the coefficient of the x- term (+ 2)

The factors are + 7 and - 5, since

7 × - 5 = - 35 and 7 - 5 = + 2, thus

x² + 2x - 35 = (x + 7)(x - 5) ← in factor form

With x + 7 as a factor → A