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Simplifying 12x + 3 = 20x2 + 5x Reorder the terms: 3 + 12x = 20x2 + 5x Reorder the terms: 3 + 12x = 5x + 20x2 Solving 3 + 12x = 5x + 20x2 Solving for variable 'x'. Combine like terms: 12x + -5x = 7x 3 + 7x + -20x2 = 5x + 20x2 + -5x + -20x2 Reorder the terms: 3 + 7x + -20x2 = 5x + -5x + 20x2 + -20x2 Combine like terms: 5x + -5x = 0 3 + 7x + -20x2 = 0 + 20x2 + -20x2 3 + 7x + -20x2 = 20x2 + -20x2 Combine like terms: 20x2 + -20x2 = 0 3 + 7x + -20x2 = 0 Factor a trinomial. (3 + -5x)(1 + 4x) = 0Subproblem 1
Set the factor '(3 + -5x)' equal to zero and attempt to solve: Simplifying 3 + -5x = 0 Solving 3 + -5x = 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 + -5x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -5x = 0 + -3 -5x = 0 + -3 Combine like terms: 0 + -3 = -3 -5x = -3 Divide each side by '-5'. x = 0.6 Simplifying x = 0.6Subproblem 2
Set the factor '(1 + 4x)' equal to zero and attempt to solve: Simplifying 1 + 4x = 0 Solving 1 + 4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 4x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 4x = 0 + -1 4x = 0 + -1 Combine like terms: 0 + -1 = -1 4x = -1 Divide each side by '4'. x = -0.25 Simplifying x = -0.25Solution
x = {0.6, -0.25}
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