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29 November, 15:47

What are the zeros of the function f (x) = (x+5) (2x-8) ?

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Answers (2)
  1. 29 November, 15:58
    0
    X = - 5 or x = 4

    Step-by-step explanation:

    F (x) = (x+5) (2x-8)

    When f (x) = 0

    0 = (x+5) (2x-8)

    Thus;

    x+5 = 0 or 2x-8 = 0

    Therefore; x = - 5 or x = 4
  2. 29 November, 16:08
    0
    x = - 5, x = 4

    Step-by-step explanation:

    To find the zeros set f (x) = 0, that is

    (x + 5) (2x - 8) = 0

    Equate each factor to zero and solve for x

    x + 5 = 0 ⇒ x = - 5

    2x - 8 = 0 ⇒ 2x = 8 ⇒ x = 4
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