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