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Simplifying 7x2 + 3x + -11 = 5 + -3x Reorder the terms: -11 + 3x + 7x2 = 5 + -3x Solving -11 + 3x + 7x2 = 5 + -3x Solving for variable 'x'. Reorder the terms: -11 + -5 + 3x + 3x + 7x2 = 5 + -3x + -5 + 3x Combine like terms: -11 + -5 = -16 -16 + 3x + 3x + 7x2 = 5 + -3x + -5 + 3x Combine like terms: 3x + 3x = 6x -16 + 6x + 7x2 = 5 + -3x + -5 + 3x Reorder the terms: -16 + 6x + 7x2 = 5 + -5 + -3x + 3x Combine like terms: 5 + -5 = 0 -16 + 6x + 7x2 = 0 + -3x + 3x -16 + 6x + 7x2 = -3x + 3x Combine like terms: -3x + 3x = 0 -16 + 6x + 7x2 = 0 Factor a trinomial. (-2 + -1x)(8 + -7x) = 0Subproblem 1
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 = -2Subproblem 2
Set the factor '(8 + -7x)' equal to zero and attempt to solve: Simplifying 8 + -7x = 0 Solving 8 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -7x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -7x = 0 + -8 -7x = 0 + -8 Combine like terms: 0 + -8 = -8 -7x = -8 Divide each side by '-7'. x = 1.142857143 Simplifying x = 1.142857143Solution
x = {-2, 1.142857143}
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