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Simplifying (x + 7)(x + 3) = 96 Reorder the terms: (7 + x)(x + 3) = 96 Reorder the terms: (7 + x)(3 + x) = 96 Multiply (7 + x) * (3 + x) (7(3 + x) + x(3 + x)) = 96 ((3 * 7 + x * 7) + x(3 + x)) = 96 ((21 + 7x) + x(3 + x)) = 96 (21 + 7x + (3 * x + x * x)) = 96 (21 + 7x + (3x + x2)) = 96 Combine like terms: 7x + 3x = 10x (21 + 10x + x2) = 96 Solving 21 + 10x + x2 = 96 Solving for variable 'x'. Reorder the terms: 21 + -96 + 10x + x2 = 96 + -96 Combine like terms: 21 + -96 = -75 -75 + 10x + x2 = 96 + -96 Combine like terms: 96 + -96 = 0 -75 + 10x + x2 = 0 Factor a trinomial. (-15 + -1x)(5 + -1x) = 0Subproblem 1
Set the factor '(-15 + -1x)' equal to zero and attempt to solve: Simplifying -15 + -1x = 0 Solving -15 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + -1x = 0 + 15 Combine like terms: -15 + 15 = 0 0 + -1x = 0 + 15 -1x = 0 + 15 Combine like terms: 0 + 15 = 15 -1x = 15 Divide each side by '-1'. x = -15 Simplifying x = -15Subproblem 2
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 = 5Solution
x = {-15, 5}
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