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Simplifying (x + -3)(x + 4) + -8 = 0 Reorder the terms: (-3 + x)(x + 4) + -8 = 0 Reorder the terms: (-3 + x)(4 + x) + -8 = 0 Multiply (-3 + x) * (4 + x) (-3(4 + x) + x(4 + x)) + -8 = 0 ((4 * -3 + x * -3) + x(4 + x)) + -8 = 0 ((-12 + -3x) + x(4 + x)) + -8 = 0 (-12 + -3x + (4 * x + x * x)) + -8 = 0 (-12 + -3x + (4x + x2)) + -8 = 0 Combine like terms: -3x + 4x = 1x (-12 + 1x + x2) + -8 = 0 Reorder the terms: -12 + -8 + 1x + x2 = 0 Combine like terms: -12 + -8 = -20 -20 + 1x + x2 = 0 Solving -20 + 1x + x2 = 0 Solving for variable 'x'. Factor a trinomial. (-5 + -1x)(4 + -1x) = 0Subproblem 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 '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 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 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4Solution
x = {-5, 4}
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