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14 August, 16:00

Which of the following are the x-intercepts on the graph of the function

shown below?

f (x) = 2 (x+1) (x - 2)

+3
Answers (1)
  1. 14 August, 18:25
    0
    x = - 1 and x = 2

    Step-by-step explanation:

    Given

    f (x) = 2 (x + 1) (x - 2)

    To find the x - intercepts let f (x) = 0, that is

    2 (x + 1) (x - 2) = 0

    Equate each factor to zero and solve for x

    x + 1 = 0 ⇒ x = - 1

    x - 2 = 0 ⇒ x = 2
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