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Simplifying (6 + x)(4 + x) = 80 Multiply (6 + x) * (4 + x) (6(4 + x) + x(4 + x)) = 80 ((4 * 6 + x * 6) + x(4 + x)) = 80 ((24 + 6x) + x(4 + x)) = 80 (24 + 6x + (4 * x + x * x)) = 80 (24 + 6x + (4x + x2)) = 80 Combine like terms: 6x + 4x = 10x (24 + 10x + x2) = 80 Solving 24 + 10x + x2 = 80 Solving for variable 'x'. Reorder the terms: 24 + -80 + 10x + x2 = 80 + -80 Combine like terms: 24 + -80 = -56 -56 + 10x + x2 = 80 + -80 Combine like terms: 80 + -80 = 0 -56 + 10x + x2 = 0 Factor a trinomial. (-14 + -1x)(4 + -1x) = 0Subproblem 1
Set the factor '(-14 + -1x)' equal to zero and attempt to solve: Simplifying -14 + -1x = 0 Solving -14 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + -1x = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -1x = 0 + 14 -1x = 0 + 14 Combine like terms: 0 + 14 = 14 -1x = 14 Divide each side by '-1'. x = -14 Simplifying x = -14Subproblem 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 = {-14, 4}
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