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Simplifying 189x = 3x3 + 6x2 Reorder the terms: 189x = 6x2 + 3x3 Solving 189x = 6x2 + 3x3 Solving for variable 'x'. Reorder the terms: 189x + -6x2 + -3x3 = 6x2 + -6x2 + 3x3 + -3x3 Combine like terms: 6x2 + -6x2 = 0 189x + -6x2 + -3x3 = 0 + 3x3 + -3x3 189x + -6x2 + -3x3 = 3x3 + -3x3 Combine like terms: 3x3 + -3x3 = 0 189x + -6x2 + -3x3 = 0 Factor out the Greatest Common Factor (GCF), '3x'. 3x(63 + -2x + -1x2) = 0 Factor a trinomial. 3x((7 + -1x)(9 + x)) = 0 Ignore the factor 3.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 '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7Subproblem 3
Set the factor '(9 + x)' equal to zero and attempt to solve: Simplifying 9 + x = 0 Solving 9 + x = 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 + x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + x = 0 + -9 x = 0 + -9 Combine like terms: 0 + -9 = -9 x = -9 Simplifying x = -9Solution
x = {0, 7, -9}
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