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Simplifying x2 + 2 + -1x(x + -1) = -1x2 + 4 Reorder the terms: x2 + 2 + -1x(-1 + x) = -1x2 + 4 x2 + 2 + (-1 * -1x + x * -1x) = -1x2 + 4 x2 + 2 + (1x + -1x2) = -1x2 + 4 Reorder the terms: 2 + 1x + x2 + -1x2 = -1x2 + 4 Combine like terms: x2 + -1x2 = 0 2 + 1x + 0 = -1x2 + 4 2 + 1x = -1x2 + 4 Reorder the terms: 2 + 1x = 4 + -1x2 Solving 2 + 1x = 4 + -1x2 Solving for variable 'x'. Reorder the terms: 2 + -4 + 1x + x2 = 4 + -1x2 + -4 + x2 Combine like terms: 2 + -4 = -2 -2 + 1x + x2 = 4 + -1x2 + -4 + x2 Reorder the terms: -2 + 1x + x2 = 4 + -4 + -1x2 + x2 Combine like terms: 4 + -4 = 0 -2 + 1x + x2 = 0 + -1x2 + x2 -2 + 1x + x2 = -1x2 + x2 Combine like terms: -1x2 + x2 = 0 -2 + 1x + x2 = 0 Factor a trinomial. (-2 + -1x)(1 + -1x) = 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 + -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 = 1Solution
x = {-2, 1}
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