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Simplifying x2 + 2x + -9 = -2x + -4 Reorder the terms: -9 + 2x + x2 = -2x + -4 Reorder the terms: -9 + 2x + x2 = -4 + -2x Solving -9 + 2x + x2 = -4 + -2x Solving for variable 'x'. Reorder the terms: -9 + 4 + 2x + 2x + x2 = -4 + -2x + 4 + 2x Combine like terms: -9 + 4 = -5 -5 + 2x + 2x + x2 = -4 + -2x + 4 + 2x Combine like terms: 2x + 2x = 4x -5 + 4x + x2 = -4 + -2x + 4 + 2x Reorder the terms: -5 + 4x + x2 = -4 + 4 + -2x + 2x Combine like terms: -4 + 4 = 0 -5 + 4x + x2 = 0 + -2x + 2x -5 + 4x + x2 = -2x + 2x Combine like terms: -2x + 2x = 0 -5 + 4x + x2 = 0 Factor a trinomial. (-5 + -1x)(1 + -1x) = 0Subproblem 1
Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 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 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5Subproblem 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 = {-5, 1}
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