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Simplifying (2x + -2)(7x + 1) = 0 Reorder the terms: (-2 + 2x)(7x + 1) = 0 Reorder the terms: (-2 + 2x)(1 + 7x) = 0 Multiply (-2 + 2x) * (1 + 7x) (-2(1 + 7x) + 2x * (1 + 7x)) = 0 ((1 * -2 + 7x * -2) + 2x * (1 + 7x)) = 0 ((-2 + -14x) + 2x * (1 + 7x)) = 0 (-2 + -14x + (1 * 2x + 7x * 2x)) = 0 (-2 + -14x + (2x + 14x2)) = 0 Combine like terms: -14x + 2x = -12x (-2 + -12x + 14x2) = 0 Solving -2 + -12x + 14x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(-1 + -6x + 7x2) = 0 Factor a trinomial. 2((-1 + -7x)(1 + -1x)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-1 + -7x)' equal to zero and attempt to solve: Simplifying -1 + -7x = 0 Solving -1 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -7x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -7x = 0 + 1 -7x = 0 + 1 Combine like terms: 0 + 1 = 1 -7x = 1 Divide each side by '-7'. x = -0.1428571429 Simplifying x = -0.1428571429Subproblem 2
Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1Solution
x = {-0.1428571429, 1}
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