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Simplifying (x + -1)(x + -8) = 0 Reorder the terms: (-1 + x)(x + -8) = 0 Reorder the terms: (-1 + x)(-8 + x) = 0 Multiply (-1 + x) * (-8 + x) (-1(-8 + x) + x(-8 + x)) = 0 ((-8 * -1 + x * -1) + x(-8 + x)) = 0 ((8 + -1x) + x(-8 + x)) = 0 (8 + -1x + (-8 * x + x * x)) = 0 (8 + -1x + (-8x + x2)) = 0 Combine like terms: -1x + -8x = -9x (8 + -9x + x2) = 0 Solving 8 + -9x + x2 = 0 Solving for variable 'x'. Factor a trinomial. (1 + -1x)(8 + -1x) = 0Subproblem 1
Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 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 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1Subproblem 2
Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 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 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8Solution
x = {1, 8}
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