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15 April, 18:50

Solve for x.

12 = x^2 + 6x

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Answers (1)
  1. 15 April, 19:07
    0
    Answer: x = 1.6 and - 7.6

    Step-by-step explanation:

    Given the equation 12 = x²+6x

    Firstly, we will equate the equation to zero by taking 12 to other side to give;

    x²+6x-12 = 0

    Using the general formula to solve

    If ax²+bx+c=0

    x = - b+-√b²-4ac/2a

    From the equation given

    a = 1 b = 6, c=-12

    x = - 6+-√6²-4 (1) (-12) / 2 (1)

    x = - 6+-√37+48/2

    x = - 6+-√85/2

    x = - 6+-9.2/2

    x = - 6+9.2/2 and - 6-9.2/2

    x = 3.2/2 and - 15.2/2

    x = 1.6 and - 7.6
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