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Simplifying (x + -12)(x + 3) = 0 Reorder the terms: (-12 + x)(x + 3) = 0 Reorder the terms: (-12 + x)(3 + x) = 0 Multiply (-12 + x) * (3 + x) (-12(3 + x) + x(3 + x)) = 0 ((3 * -12 + x * -12) + x(3 + x)) = 0 ((-36 + -12x) + x(3 + x)) = 0 (-36 + -12x + (3 * x + x * x)) = 0 (-36 + -12x + (3x + x2)) = 0 Combine like terms: -12x + 3x = -9x (-36 + -9x + x2) = 0 Solving -36 + -9x + x2 = 0 Solving for variable 'x'. Factor a trinomial. (-3 + -1x)(12 + -1x) = 0Subproblem 1
Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3Subproblem 2
Set the factor '(12 + -1x)' equal to zero and attempt to solve: Simplifying 12 + -1x = 0 Solving 12 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1x = 0 + -12 -1x = 0 + -12 Combine like terms: 0 + -12 = -12 -1x = -12 Divide each side by '-1'. x = 12 Simplifying x = 12Solution
x = {-3, 12}
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