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23 September, 17:30

Solve the equation.

x2 - x - 12 = 0

+5
Answers (2)
  1. 23 September, 17:37
    0
    x=4 and - 3

    Step-by-step explanation:

    Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
  2. 23 September, 17:47
    0
    x = 4 or x = - 3

    Step-by-step explanation:

    Solve for x over the real numbers:

    x^2 - x - 12 = 0

    The left hand side factors into a product with two terms:

    (x - 4) (x + 3) = 0

    Split into two equations:

    x - 4 = 0 or x + 3 = 0

    Add 4 to both sides:

    x = 4 or x + 3 = 0

    Subtract 3 from both sides:

    Answer: x = 4 or x = - 3
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