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2 November, 14:27

Whats the solutions for f (x) = - x^2-6x-8

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Answers (2)
  1. 2 November, 14:32
    0
    x = - 4, - 2

    Step-by-step explanation:

    -x² - 6x - 8 = 0

    x² + 6x + 8 = 0

    x² + 4x + 2x + 8 = 0

    x (x + 4) + 2 (x + 4) = 0

    (x + 4) (x + 2) = 0

    x = - 4, - 2
  2. 2 November, 14:56
    0
    x=-4 x=-2

    Step-by-step explanation:

    Set this equal to zero to find the solutions

    0 = - x^2-6x-8

    Divide by - 1

    0/-1 = x^2 + 6x+8

    0 = x^2 + 6x+8

    Factor

    What 2 numbers multiply to 8 and add to 6

    4*2 = 8

    4+2 = 6

    0 = (x+4) (x+2)

    Using the zero product property

    x+4 = 0 x+2 = 0

    x=-4 x=-2
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