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Simplifying 9x + 1 = 3(x2 + -5) + -1(x + -3)(x + 2) Reorder the terms: 1 + 9x = 3(x2 + -5) + -1(x + -3)(x + 2) Reorder the terms: 1 + 9x = 3(-5 + x2) + -1(x + -3)(x + 2) 1 + 9x = (-5 * 3 + x2 * 3) + -1(x + -3)(x + 2) 1 + 9x = (-15 + 3x2) + -1(x + -3)(x + 2) Reorder the terms: 1 + 9x = -15 + 3x2 + -1(-3 + x)(x + 2) Reorder the terms: 1 + 9x = -15 + 3x2 + -1(-3 + x)(2 + x) Multiply (-3 + x) * (2 + x) 1 + 9x = -15 + 3x2 + -1(-3(2 + x) + x(2 + x)) 1 + 9x = -15 + 3x2 + -1((2 * -3 + x * -3) + x(2 + x)) 1 + 9x = -15 + 3x2 + -1((-6 + -3x) + x(2 + x)) 1 + 9x = -15 + 3x2 + -1(-6 + -3x + (2 * x + x * x)) 1 + 9x = -15 + 3x2 + -1(-6 + -3x + (2x + x2)) Combine like terms: -3x + 2x = -1x 1 + 9x = -15 + 3x2 + -1(-6 + -1x + x2) 1 + 9x = -15 + 3x2 + (-6 * -1 + -1x * -1 + x2 * -1) 1 + 9x = -15 + 3x2 + (6 + 1x + -1x2) Reorder the terms: 1 + 9x = -15 + 6 + 1x + 3x2 + -1x2 Combine like terms: -15 + 6 = -9 1 + 9x = -9 + 1x + 3x2 + -1x2 Combine like terms: 3x2 + -1x2 = 2x2 1 + 9x = -9 + 1x + 2x2 Solving 1 + 9x = -9 + 1x + 2x2 Solving for variable 'x'. Reorder the terms: 1 + 9 + 9x + -1x + -2x2 = -9 + 1x + 2x2 + 9 + -1x + -2x2 Combine like terms: 1 + 9 = 10 10 + 9x + -1x + -2x2 = -9 + 1x + 2x2 + 9 + -1x + -2x2 Combine like terms: 9x + -1x = 8x 10 + 8x + -2x2 = -9 + 1x + 2x2 + 9 + -1x + -2x2 Reorder the terms: 10 + 8x + -2x2 = -9 + 9 + 1x + -1x + 2x2 + -2x2 Combine like terms: -9 + 9 = 0 10 + 8x + -2x2 = 0 + 1x + -1x + 2x2 + -2x2 10 + 8x + -2x2 = 1x + -1x + 2x2 + -2x2 Combine like terms: 1x + -1x = 0 10 + 8x + -2x2 = 0 + 2x2 + -2x2 10 + 8x + -2x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 10 + 8x + -2x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(5 + 4x + -1x2) = 0 Factor a trinomial. 2((5 + -1x)(1 + x)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5Subproblem 2
Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 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 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1Solution
x = {5, -1}
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