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Simplifying (x + -2)(7x + 6) = 0 Reorder the terms: (-2 + x)(7x + 6) = 0 Reorder the terms: (-2 + x)(6 + 7x) = 0 Multiply (-2 + x) * (6 + 7x) (-2(6 + 7x) + x(6 + 7x)) = 0 ((6 * -2 + 7x * -2) + x(6 + 7x)) = 0 ((-12 + -14x) + x(6 + 7x)) = 0 (-12 + -14x + (6 * x + 7x * x)) = 0 (-12 + -14x + (6x + 7x2)) = 0 Combine like terms: -14x + 6x = -8x (-12 + -8x + 7x2) = 0 Solving -12 + -8x + 7x2 = 0 Solving for variable 'x'. Factor a trinomial. (-6 + -7x)(2 + -1x) = 0Subproblem 1
Set the factor '(-6 + -7x)' equal to zero and attempt to solve: Simplifying -6 + -7x = 0 Solving -6 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -7x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -7x = 0 + 6 -7x = 0 + 6 Combine like terms: 0 + 6 = 6 -7x = 6 Divide each side by '-7'. x = -0.8571428571 Simplifying x = -0.8571428571Subproblem 2
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 = 2Solution
x = {-0.8571428571, 2}
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