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Simplifying x2 + -18 = 5x + 6 Reorder the terms: -18 + x2 = 5x + 6 Reorder the terms: -18 + x2 = 6 + 5x Solving -18 + x2 = 6 + 5x Solving for variable 'x'. Reorder the terms: -18 + -6 + -5x + x2 = 6 + 5x + -6 + -5x Combine like terms: -18 + -6 = -24 -24 + -5x + x2 = 6 + 5x + -6 + -5x Reorder the terms: -24 + -5x + x2 = 6 + -6 + 5x + -5x Combine like terms: 6 + -6 = 0 -24 + -5x + x2 = 0 + 5x + -5x -24 + -5x + x2 = 5x + -5x Combine like terms: 5x + -5x = 0 -24 + -5x + x2 = 0 Factor a trinomial. (-3 + -1x)(8 + -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 '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8Solution
x = {-3, 8}
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