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Simplifying (x + -3)(x + 4) + 8 = 8 Reorder the terms: (-3 + x)(x + 4) + 8 = 8 Reorder the terms: (-3 + x)(4 + x) + 8 = 8 Multiply (-3 + x) * (4 + x) (-3(4 + x) + x(4 + x)) + 8 = 8 ((4 * -3 + x * -3) + x(4 + x)) + 8 = 8 ((-12 + -3x) + x(4 + x)) + 8 = 8 (-12 + -3x + (4 * x + x * x)) + 8 = 8 (-12 + -3x + (4x + x2)) + 8 = 8 Combine like terms: -3x + 4x = 1x (-12 + 1x + x2) + 8 = 8 Reorder the terms: -12 + 8 + 1x + x2 = 8 Combine like terms: -12 + 8 = -4 -4 + 1x + x2 = 8 Solving -4 + 1x + x2 = 8 Solving for variable 'x'. Reorder the terms: -4 + -8 + 1x + x2 = 8 + -8 Combine like terms: -4 + -8 = -12 -12 + 1x + x2 = 8 + -8 Combine like terms: 8 + -8 = 0 -12 + 1x + x2 = 0 Factor a trinomial. (-4 + -1x)(3 + -1x) = 0Subproblem 1
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 = -4Subproblem 2
Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3Solution
x = {-4, 3}
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