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Simplifying 7x2 + 5x + -9 = 3 + -3x Reorder the terms: -9 + 5x + 7x2 = 3 + -3x Solving -9 + 5x + 7x2 = 3 + -3x Solving for variable 'x'. Reorder the terms: -9 + -3 + 5x + 3x + 7x2 = 3 + -3x + -3 + 3x Combine like terms: -9 + -3 = -12 -12 + 5x + 3x + 7x2 = 3 + -3x + -3 + 3x Combine like terms: 5x + 3x = 8x -12 + 8x + 7x2 = 3 + -3x + -3 + 3x Reorder the terms: -12 + 8x + 7x2 = 3 + -3 + -3x + 3x Combine like terms: 3 + -3 = 0 -12 + 8x + 7x2 = 0 + -3x + 3x -12 + 8x + 7x2 = -3x + 3x Combine like terms: -3x + 3x = 0 -12 + 8x + 7x2 = 0 Factor a trinomial. (-2 + -1x)(6 + -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 '(6 + -7x)' equal to zero and attempt to solve: Simplifying 6 + -7x = 0 Solving 6 + -7x = 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 + -7x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -7x = 0 + -6 -7x = 0 + -6 Combine like terms: 0 + -6 = -6 -7x = -6 Divide each side by '-7'. x = 0.8571428571 Simplifying x = 0.8571428571Solution
x = {-2, 0.8571428571}
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