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Simplifying (x + 8)(7x + 2) = 0 Reorder the terms: (8 + x)(7x + 2) = 0 Reorder the terms: (8 + x)(2 + 7x) = 0 Multiply (8 + x) * (2 + 7x) (8(2 + 7x) + x(2 + 7x)) = 0 ((2 * 8 + 7x * 8) + x(2 + 7x)) = 0 ((16 + 56x) + x(2 + 7x)) = 0 (16 + 56x + (2 * x + 7x * x)) = 0 (16 + 56x + (2x + 7x2)) = 0 Combine like terms: 56x + 2x = 58x (16 + 58x + 7x2) = 0 Solving 16 + 58x + 7x2 = 0 Solving for variable 'x'. Factor a trinomial. (8 + x)(2 + 7x) = 0Subproblem 1
Set the factor '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8Subproblem 2
Set the factor '(2 + 7x)' equal to zero and attempt to solve: Simplifying 2 + 7x = 0 Solving 2 + 7x = 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 + 7x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 7x = 0 + -2 7x = 0 + -2 Combine like terms: 0 + -2 = -2 7x = -2 Divide each side by '7'. x = -0.2857142857 Simplifying x = -0.2857142857Solution
x = {-8, -0.2857142857}
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