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Simplifying x2 + 20x = 4x + 36 Reorder the terms: 20x + x2 = 4x + 36 Reorder the terms: 20x + x2 = 36 + 4x Solving 20x + x2 = 36 + 4x Solving for variable 'x'. Reorder the terms: -36 + 20x + -4x + x2 = 36 + 4x + -36 + -4x Combine like terms: 20x + -4x = 16x -36 + 16x + x2 = 36 + 4x + -36 + -4x Reorder the terms: -36 + 16x + x2 = 36 + -36 + 4x + -4x Combine like terms: 36 + -36 = 0 -36 + 16x + x2 = 0 + 4x + -4x -36 + 16x + x2 = 4x + -4x Combine like terms: 4x + -4x = 0 -36 + 16x + x2 = 0 Factor a trinomial. (-18 + -1x)(2 + -1x) = 0Subproblem 1
Set the factor '(-18 + -1x)' equal to zero and attempt to solve: Simplifying -18 + -1x = 0 Solving -18 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + -1x = 0 + 18 Combine like terms: -18 + 18 = 0 0 + -1x = 0 + 18 -1x = 0 + 18 Combine like terms: 0 + 18 = 18 -1x = 18 Divide each side by '-1'. x = -18 Simplifying x = -18Subproblem 2
Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2Solution
x = {-18, 2}
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