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Simplifying (3x + -1)(4x + -2) = 80 Reorder the terms: (-1 + 3x)(4x + -2) = 80 Reorder the terms: (-1 + 3x)(-2 + 4x) = 80 Multiply (-1 + 3x) * (-2 + 4x) (-1(-2 + 4x) + 3x * (-2 + 4x)) = 80 ((-2 * -1 + 4x * -1) + 3x * (-2 + 4x)) = 80 ((2 + -4x) + 3x * (-2 + 4x)) = 80 (2 + -4x + (-2 * 3x + 4x * 3x)) = 80 (2 + -4x + (-6x + 12x2)) = 80 Combine like terms: -4x + -6x = -10x (2 + -10x + 12x2) = 80 Solving 2 + -10x + 12x2 = 80 Solving for variable 'x'. Reorder the terms: 2 + -80 + -10x + 12x2 = 80 + -80 Combine like terms: 2 + -80 = -78 -78 + -10x + 12x2 = 80 + -80 Combine like terms: 80 + -80 = 0 -78 + -10x + 12x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-39 + -5x + 6x2) = 0 Factor a trinomial. 2((-13 + -6x)(3 + -1x)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-13 + -6x)' equal to zero and attempt to solve: Simplifying -13 + -6x = 0 Solving -13 + -6x = 0 Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + -6x = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -6x = 0 + 13 -6x = 0 + 13 Combine like terms: 0 + 13 = 13 -6x = 13 Divide each side by '-6'. x = -2.166666667 Simplifying x = -2.166666667Subproblem 2
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 = 3Solution
x = {-2.166666667, 3}
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