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Simplifying (4x + -2)(9 + x) = 0 Reorder the terms: (-2 + 4x)(9 + x) = 0 Multiply (-2 + 4x) * (9 + x) (-2(9 + x) + 4x * (9 + x)) = 0 ((9 * -2 + x * -2) + 4x * (9 + x)) = 0 ((-18 + -2x) + 4x * (9 + x)) = 0 (-18 + -2x + (9 * 4x + x * 4x)) = 0 (-18 + -2x + (36x + 4x2)) = 0 Combine like terms: -2x + 36x = 34x (-18 + 34x + 4x2) = 0 Solving -18 + 34x + 4x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(-9 + 17x + 2x2) = 0 Factor a trinomial. 2((-9 + -1x)(1 + -2x)) = 0 Ignore the factor 2.Subproblem 1
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 = -9Subproblem 2
Set the factor '(1 + -2x)' equal to zero and attempt to solve: Simplifying 1 + -2x = 0 Solving 1 + -2x = 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 + -2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2x = 0 + -1 -2x = 0 + -1 Combine like terms: 0 + -1 = -1 -2x = -1 Divide each side by '-2'. x = 0.5 Simplifying x = 0.5Solution
x = {-9, 0.5}
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