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15 April, 19:01

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

+1
Answers (1)
  1. 15 April, 20:34
    0
    A

    Step-by-step 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
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