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Simplifying (x + 9)(x + 5) = 0 Reorder the terms: (9 + x)(x + 5) = 0 Reorder the terms: (9 + x)(5 + x) = 0 Multiply (9 + x) * (5 + x) (9(5 + x) + x(5 + x)) = 0 ((5 * 9 + x * 9) + x(5 + x)) = 0 ((45 + 9x) + x(5 + x)) = 0 (45 + 9x + (5 * x + x * x)) = 0 (45 + 9x + (5x + x2)) = 0 Combine like terms: 9x + 5x = 14x (45 + 14x + x2) = 0 Solving 45 + 14x + x2 = 0 Solving for variable 'x'. Factor a trinomial. (9 + x)(5 + x) = 0Subproblem 1
Set the factor '(9 + x)' equal to zero and attempt to solve: Simplifying 9 + x = 0 Solving 9 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + x = 0 + -9 x = 0 + -9 Combine like terms: 0 + -9 = -9 x = -9 Simplifying x = -9Subproblem 2
Set the factor '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 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 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5Solution
x = {-9, -5}
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