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