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21 February, 19:30

What are the solutions to x 2 + 4x - 12 = 0?

x = - 2 or x = 6

x = 3 or x = - 4

x = 2 or x = - 6

x = 4 or x = - 3

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Answers (1)
  1. 21 February, 19:42
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    Start by breaking the polynomial into two binomials:

    x^2 + 4x - 12 = 0

    (x+6) (x-2) = 0

    Now set each binomial equal to zero:

    (x+6) = 0

    x=-6

    (x-2) = 0

    x=2

    So your answers are x=2 and x = - 6
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