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8 July, 15:29

The quadradic function f (x) = -x^2-6x-8 is graphed. What are the solutions of the quadradic equation 0 = - X^2-6x-8?

A. 2 and - 4

B. - 2 and 4

C. - 2 and - 4

D. 2 and 4

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Answers (1)
  1. 8 July, 15:37
    0
    C

    Step-by-step explanation:

    Given

    - x² - 6x - 8 = 0 (multiply through by - 1)

    x² + 6x + 8 = 0 ← in standard form

    (x + 4) (x + 2) = 0 ← in factored form

    Equate each factor to zero and solve for x

    x + 4 = 0 ⇒ x = - 4

    x + 2 = 0 ⇒ x = - 2
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