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Simplifying (9x + 2)(x + 5) = 0 Reorder the terms: (2 + 9x)(x + 5) = 0 Reorder the terms: (2 + 9x)(5 + x) = 0 Multiply (2 + 9x) * (5 + x) (2(5 + x) + 9x * (5 + x)) = 0 ((5 * 2 + x * 2) + 9x * (5 + x)) = 0 ((10 + 2x) + 9x * (5 + x)) = 0 (10 + 2x + (5 * 9x + x * 9x)) = 0 (10 + 2x + (45x + 9x2)) = 0 Combine like terms: 2x + 45x = 47x (10 + 47x + 9x2) = 0 Solving 10 + 47x + 9x2 = 0 Solving for variable 'x'. Factor a trinomial. (5 + x)(2 + 9x) = 0Subproblem 1
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 = -5Subproblem 2
Set the factor '(2 + 9x)' equal to zero and attempt to solve: Simplifying 2 + 9x = 0 Solving 2 + 9x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 9x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 9x = 0 + -2 9x = 0 + -2 Combine like terms: 0 + -2 = -2 9x = -2 Divide each side by '9'. x = -0.2222222222 Simplifying x = -0.2222222222Solution
x = {-5, -0.2222222222}
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