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Simplifying 2x2 + 3x + 1 = 120 Reorder the terms: 1 + 3x + 2x2 = 120 Solving 1 + 3x + 2x2 = 120 Solving for variable 'x'. Reorder the terms: 1 + -120 + 3x + 2x2 = 120 + -120 Combine like terms: 1 + -120 = -119 -119 + 3x + 2x2 = 120 + -120 Combine like terms: 120 + -120 = 0 -119 + 3x + 2x2 = 0 Factor a trinomial. (-17 + -2x)(7 + -1x) = 0Subproblem 1
Set the factor '(-17 + -2x)' equal to zero and attempt to solve: Simplifying -17 + -2x = 0 Solving -17 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '17' to each side of the equation. -17 + 17 + -2x = 0 + 17 Combine like terms: -17 + 17 = 0 0 + -2x = 0 + 17 -2x = 0 + 17 Combine like terms: 0 + 17 = 17 -2x = 17 Divide each side by '-2'. x = -8.5 Simplifying x = -8.5Subproblem 2
Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 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 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7Solution
x = {-8.5, 7}
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