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Simplifying 9 + -2x = x2 + 6x + 9 Reorder the terms: 9 + -2x = 9 + 6x + x2 Add '-9' to each side of the equation. 9 + -9 + -2x = 9 + 6x + -9 + x2 Combine like terms: 9 + -9 = 0 0 + -2x = 9 + 6x + -9 + x2 -2x = 9 + 6x + -9 + x2 Reorder the terms: -2x = 9 + -9 + 6x + x2 Combine like terms: 9 + -9 = 0 -2x = 0 + 6x + x2 -2x = 6x + x2 Solving -2x = 6x + x2 Solving for variable 'x'. Combine like terms: -2x + -6x = -8x -8x + -1x2 = 6x + x2 + -6x + -1x2 Reorder the terms: -8x + -1x2 = 6x + -6x + x2 + -1x2 Combine like terms: 6x + -6x = 0 -8x + -1x2 = 0 + x2 + -1x2 -8x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -8x + -1x2 = 0 Factor out the Greatest Common Factor (GCF), '-1x'. -1x(8 + x) = 0 Ignore the factor -1.Subproblem 1
Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0Subproblem 2
Set the factor '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8Solution
x = {0, -8}
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