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12 May, 01:11

Solve for x. x2 + x - 6 = 0 A. - 2, - 3 B. - 2, 3 C. 2, - 3 D. 2, 3

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Answers (2)
  1. 12 May, 03:16
    0
    C. 2, - 3

    Step-by-step explanation:

    x^2 + x - 6 = 0

    Factor

    What 2 numbers multiply to - 6 and add to 1

    3*-2 = 6

    3-2 = 1

    (x+3) (x-2) = 0

    Using the zero product property

    x+3 = 0 x-2 = 0

    x+3-3 = 0-3 x-2+2 = 0+2

    x = - 3 x = 2
  2. 12 May, 04:37
    0
    Factor x^2 + x - 6

    (x - 2) (x + 3) = 0

    Solve for x

    Ask yourself; When will (x - 2) (x + 3) equal zero?

    When x - 2 = 0 or x + 3 = 0

    Then solve for each of the two equations above

    x = 2, - 3

    Answer: C. 2, - 3
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