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Simplifying 3x2 + 9x + 30 = 2x2 + -2x Reorder the terms: 30 + 9x + 3x2 = 2x2 + -2x Reorder the terms: 30 + 9x + 3x2 = -2x + 2x2 Solving 30 + 9x + 3x2 = -2x + 2x2 Solving for variable 'x'. Reorder the terms: 30 + 9x + 2x + 3x2 + -2x2 = -2x + 2x2 + 2x + -2x2 Combine like terms: 9x + 2x = 11x 30 + 11x + 3x2 + -2x2 = -2x + 2x2 + 2x + -2x2 Combine like terms: 3x2 + -2x2 = 1x2 30 + 11x + 1x2 = -2x + 2x2 + 2x + -2x2 Reorder the terms: 30 + 11x + 1x2 = -2x + 2x + 2x2 + -2x2 Combine like terms: -2x + 2x = 0 30 + 11x + 1x2 = 0 + 2x2 + -2x2 30 + 11x + 1x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 30 + 11x + 1x2 = 0 Factor a trinomial. (6 + x)(5 + x) = 0Subproblem 1
Set the factor '(6 + x)' equal to zero and attempt to solve: Simplifying 6 + x = 0 Solving 6 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + x = 0 + -6 x = 0 + -6 Combine like terms: 0 + -6 = -6 x = -6 Simplifying x = -6Subproblem 2
Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 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 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5Solution
x = {-6, -5}
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