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Simplifying (x + -1)(x + 2) = 10 Reorder the terms: (-1 + x)(x + 2) = 10 Reorder the terms: (-1 + x)(2 + x) = 10 Multiply (-1 + x) * (2 + x) (-1(2 + x) + x(2 + x)) = 10 ((2 * -1 + x * -1) + x(2 + x)) = 10 ((-2 + -1x) + x(2 + x)) = 10 (-2 + -1x + (2 * x + x * x)) = 10 (-2 + -1x + (2x + x2)) = 10 Combine like terms: -1x + 2x = 1x (-2 + 1x + x2) = 10 Solving -2 + 1x + x2 = 10 Solving for variable 'x'. Reorder the terms: -2 + -10 + 1x + x2 = 10 + -10 Combine like terms: -2 + -10 = -12 -12 + 1x + x2 = 10 + -10 Combine like terms: 10 + -10 = 0 -12 + 1x + x2 = 0 Factor a trinomial. (-4 + -1x)(3 + -1x) = 0Subproblem 1
Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4Subproblem 2
Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3Solution
x = {-4, 3}
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