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Simplifying 0 = x3 + -9x2 + -36x Reorder the terms: 0 = -36x + -9x2 + x3 Solving 0 = -36x + -9x2 + x3 Solving for variable 'x'. Remove the zero: 36x + 9x2 + -1x3 = -36x + -9x2 + x3 + 36x + 9x2 + -1x3 Reorder the terms: 36x + 9x2 + -1x3 = -36x + 36x + -9x2 + 9x2 + x3 + -1x3 Combine like terms: -36x + 36x = 0 36x + 9x2 + -1x3 = 0 + -9x2 + 9x2 + x3 + -1x3 36x + 9x2 + -1x3 = -9x2 + 9x2 + x3 + -1x3 Combine like terms: -9x2 + 9x2 = 0 36x + 9x2 + -1x3 = 0 + x3 + -1x3 36x + 9x2 + -1x3 = x3 + -1x3 Combine like terms: x3 + -1x3 = 0 36x + 9x2 + -1x3 = 0 Factor out the Greatest Common Factor (GCF), 'x'. x(36 + 9x + -1x2) = 0 Factor a trinomial. x((12 + -1x)(3 + x)) = 0Subproblem 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 '(12 + -1x)' equal to zero and attempt to solve: Simplifying 12 + -1x = 0 Solving 12 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1x = 0 + -12 -1x = 0 + -12 Combine like terms: 0 + -12 = -12 -1x = -12 Divide each side by '-1'. x = 12 Simplifying x = 12Subproblem 3
Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3Solution
x = {0, 12, -3}
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