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Simplifying (8x + -1)(x + 2) = 0 Reorder the terms: (-1 + 8x)(x + 2) = 0 Reorder the terms: (-1 + 8x)(2 + x) = 0 Multiply (-1 + 8x) * (2 + x) (-1(2 + x) + 8x * (2 + x)) = 0 ((2 * -1 + x * -1) + 8x * (2 + x)) = 0 ((-2 + -1x) + 8x * (2 + x)) = 0 (-2 + -1x + (2 * 8x + x * 8x)) = 0 (-2 + -1x + (16x + 8x2)) = 0 Combine like terms: -1x + 16x = 15x (-2 + 15x + 8x2) = 0 Solving -2 + 15x + 8x2 = 0 Solving for variable 'x'. Factor a trinomial. (-2 + -1x)(1 + -8x) = 0Subproblem 1
Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 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 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2Subproblem 2
Set the factor '(1 + -8x)' equal to zero and attempt to solve: Simplifying 1 + -8x = 0 Solving 1 + -8x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -8x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -8x = 0 + -1 -8x = 0 + -1 Combine like terms: 0 + -1 = -1 -8x = -1 Divide each side by '-8'. x = 0.125 Simplifying x = 0.125Solution
x = {-2, 0.125}
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