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Simplifying 3x2 + 9 = 2x2 + 6x Reorder the terms: 9 + 3x2 = 2x2 + 6x Reorder the terms: 9 + 3x2 = 6x + 2x2 Solving 9 + 3x2 = 6x + 2x2 Solving for variable 'x'. Reorder the terms: 9 + -6x + 3x2 + -2x2 = 6x + 2x2 + -6x + -2x2 Combine like terms: 3x2 + -2x2 = 1x2 9 + -6x + 1x2 = 6x + 2x2 + -6x + -2x2 Reorder the terms: 9 + -6x + 1x2 = 6x + -6x + 2x2 + -2x2 Combine like terms: 6x + -6x = 0 9 + -6x + 1x2 = 0 + 2x2 + -2x2 9 + -6x + 1x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 9 + -6x + 1x2 = 0 Factor a trinomial. (3 + -1x)(3 + -1x) = 0Subproblem 1
Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3Subproblem 2
Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3Solution
x = {3, 3}
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