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Simplifying 6(x + 2)(2x + -7) = 0 Reorder the terms: 6(2 + x)(2x + -7) = 0 Reorder the terms: 6(2 + x)(-7 + 2x) = 0 Multiply (2 + x) * (-7 + 2x) 6(2(-7 + 2x) + x(-7 + 2x)) = 0 6((-7 * 2 + 2x * 2) + x(-7 + 2x)) = 0 6((-14 + 4x) + x(-7 + 2x)) = 0 6(-14 + 4x + (-7 * x + 2x * x)) = 0 6(-14 + 4x + (-7x + 2x2)) = 0 Combine like terms: 4x + -7x = -3x 6(-14 + -3x + 2x2) = 0 (-14 * 6 + -3x * 6 + 2x2 * 6) = 0 (-84 + -18x + 12x2) = 0 Solving -84 + -18x + 12x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '6'. 6(-14 + -3x + 2x2) = 0 Factor a trinomial. 6((-2 + -1x)(7 + -2x)) = 0 Ignore the factor 6.Subproblem 1
Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2Subproblem 2
Set the factor '(7 + -2x)' equal to zero and attempt to solve: Simplifying 7 + -2x = 0 Solving 7 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2x = 0 + -7 -2x = 0 + -7 Combine like terms: 0 + -7 = -7 -2x = -7 Divide each side by '-2'. x = 3.5 Simplifying x = 3.5Solution
x = {-2, 3.5}
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