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Which of the following is an x-intercept of the function f (x) = x^2-64

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  1. 17 June, 08:15
    0
    x - intercepts are - 8 and 8

    Step-by-step explanation:

    to find the x-intercepts set f (x) = 0, that is

    x² - 64 = 0 (this is a difference of squares)

    (x - 8) (x + 8) = 0 ← in factored form

    equate each factor to zero and solve for x

    x - 8 = 0 ⇒ x = 8

    x + 8 = 0 ⇒ x = - 8
  2. 17 June, 08:19
    0
    8 and - 8
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