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Simplifying 2x2 + -28x = -3x2 + -7x + -18 Reorder the terms: -28x + 2x2 = -3x2 + -7x + -18 Reorder the terms: -28x + 2x2 = -18 + -7x + -3x2 Solving -28x + 2x2 = -18 + -7x + -3x2 Solving for variable 'x'. Reorder the terms: 18 + -28x + 7x + 2x2 + 3x2 = -18 + -7x + -3x2 + 18 + 7x + 3x2 Combine like terms: -28x + 7x = -21x 18 + -21x + 2x2 + 3x2 = -18 + -7x + -3x2 + 18 + 7x + 3x2 Combine like terms: 2x2 + 3x2 = 5x2 18 + -21x + 5x2 = -18 + -7x + -3x2 + 18 + 7x + 3x2 Reorder the terms: 18 + -21x + 5x2 = -18 + 18 + -7x + 7x + -3x2 + 3x2 Combine like terms: -18 + 18 = 0 18 + -21x + 5x2 = 0 + -7x + 7x + -3x2 + 3x2 18 + -21x + 5x2 = -7x + 7x + -3x2 + 3x2 Combine like terms: -7x + 7x = 0 18 + -21x + 5x2 = 0 + -3x2 + 3x2 18 + -21x + 5x2 = -3x2 + 3x2 Combine like terms: -3x2 + 3x2 = 0 18 + -21x + 5x2 = 0 Factor a trinomial. (6 + -5x)(3 + -1x) = 0Subproblem 1
Set the factor '(6 + -5x)' equal to zero and attempt to solve: Simplifying 6 + -5x = 0 Solving 6 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -5x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -5x = 0 + -6 -5x = 0 + -6 Combine like terms: 0 + -6 = -6 -5x = -6 Divide each side by '-5'. x = 1.2 Simplifying x = 1.2Subproblem 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 = {1.2, 3}
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