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Simplifying 9x2 = 63 + 6x Solving 9x2 = 63 + 6x Solving for variable 'x'. Reorder the terms: -63 + -6x + 9x2 = 63 + 6x + -63 + -6x Reorder the terms: -63 + -6x + 9x2 = 63 + -63 + 6x + -6x Combine like terms: 63 + -63 = 0 -63 + -6x + 9x2 = 0 + 6x + -6x -63 + -6x + 9x2 = 6x + -6x Combine like terms: 6x + -6x = 0 -63 + -6x + 9x2 = 0 Factor out the Greatest Common Factor (GCF), '3'. 3(-21 + -2x + 3x2) = 0 Factor a trinomial. 3((-7 + -3x)(3 + -1x)) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(-7 + -3x)' equal to zero and attempt to solve: Simplifying -7 + -3x = 0 Solving -7 + -3x = 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 + -3x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -3x = 0 + 7 -3x = 0 + 7 Combine like terms: 0 + 7 = 7 -3x = 7 Divide each side by '-3'. x = -2.333333333 Simplifying x = -2.333333333Subproblem 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 = {-2.333333333, 3}
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