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Simplifying 3x2 + 8x + -4 = 12 Reorder the terms: -4 + 8x + 3x2 = 12 Solving -4 + 8x + 3x2 = 12 Solving for variable 'x'. Reorder the terms: -4 + -12 + 8x + 3x2 = 12 + -12 Combine like terms: -4 + -12 = -16 -16 + 8x + 3x2 = 12 + -12 Combine like terms: 12 + -12 = 0 -16 + 8x + 3x2 = 0 Factor a trinomial. (-4 + -1x)(4 + -3x) = 0Subproblem 1
Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4Subproblem 2
Set the factor '(4 + -3x)' equal to zero and attempt to solve: Simplifying 4 + -3x = 0 Solving 4 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -3x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3x = 0 + -4 -3x = 0 + -4 Combine like terms: 0 + -4 = -4 -3x = -4 Divide each side by '-3'. x = 1.333333333 Simplifying x = 1.333333333Solution
x = {-4, 1.333333333}
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