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Simplifying 23 + -1(8x2 + 12x) = 3x2 + -3x + 3 Reorder the terms: 23 + -1(12x + 8x2) = 3x2 + -3x + 3 23 + (12x * -1 + 8x2 * -1) = 3x2 + -3x + 3 23 + (-12x + -8x2) = 3x2 + -3x + 3 Reorder the terms: 23 + -12x + -8x2 = 3 + -3x + 3x2 Solving 23 + -12x + -8x2 = 3 + -3x + 3x2 Solving for variable 'x'. Reorder the terms: 23 + -3 + -12x + 3x + -8x2 + -3x2 = 3 + -3x + 3x2 + -3 + 3x + -3x2 Combine like terms: 23 + -3 = 20 20 + -12x + 3x + -8x2 + -3x2 = 3 + -3x + 3x2 + -3 + 3x + -3x2 Combine like terms: -12x + 3x = -9x 20 + -9x + -8x2 + -3x2 = 3 + -3x + 3x2 + -3 + 3x + -3x2 Combine like terms: -8x2 + -3x2 = -11x2 20 + -9x + -11x2 = 3 + -3x + 3x2 + -3 + 3x + -3x2 Reorder the terms: 20 + -9x + -11x2 = 3 + -3 + -3x + 3x + 3x2 + -3x2 Combine like terms: 3 + -3 = 0 20 + -9x + -11x2 = 0 + -3x + 3x + 3x2 + -3x2 20 + -9x + -11x2 = -3x + 3x + 3x2 + -3x2 Combine like terms: -3x + 3x = 0 20 + -9x + -11x2 = 0 + 3x2 + -3x2 20 + -9x + -11x2 = 3x2 + -3x2 Combine like terms: 3x2 + -3x2 = 0 20 + -9x + -11x2 = 0 Factor a trinomial. (1 + -1x)(20 + 11x) = 0Subproblem 1
Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 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 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1Subproblem 2
Set the factor '(20 + 11x)' equal to zero and attempt to solve: Simplifying 20 + 11x = 0 Solving 20 + 11x = 0 Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + 11x = 0 + -20 Combine like terms: 20 + -20 = 0 0 + 11x = 0 + -20 11x = 0 + -20 Combine like terms: 0 + -20 = -20 11x = -20 Divide each side by '11'. x = -1.818181818 Simplifying x = -1.818181818Solution
x = {1, -1.818181818}
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