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Simplifying (6x + 5)(3x + -20 + -7) = 0 Reorder the terms: (5 + 6x)(3x + -20 + -7) = 0 Reorder the terms: (5 + 6x)(-20 + -7 + 3x) = 0 Combine like terms: -20 + -7 = -27 (5 + 6x)(-27 + 3x) = 0 Multiply (5 + 6x) * (-27 + 3x) (5(-27 + 3x) + 6x * (-27 + 3x)) = 0 ((-27 * 5 + 3x * 5) + 6x * (-27 + 3x)) = 0 ((-135 + 15x) + 6x * (-27 + 3x)) = 0 (-135 + 15x + (-27 * 6x + 3x * 6x)) = 0 (-135 + 15x + (-162x + 18x2)) = 0 Combine like terms: 15x + -162x = -147x (-135 + -147x + 18x2) = 0 Solving -135 + -147x + 18x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '3'. 3(-45 + -49x + 6x2) = 0 Factor a trinomial. 3((-5 + -6x)(9 + -1x)) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(-5 + -6x)' equal to zero and attempt to solve: Simplifying -5 + -6x = 0 Solving -5 + -6x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -6x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -6x = 0 + 5 -6x = 0 + 5 Combine like terms: 0 + 5 = 5 -6x = 5 Divide each side by '-6'. x = -0.8333333333 Simplifying x = -0.8333333333Subproblem 2
Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9Solution
x = {-0.8333333333, 9}
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