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Simplifying x2 + -8x + -4 = -7x + -2 Reorder the terms: -4 + -8x + x2 = -7x + -2 Reorder the terms: -4 + -8x + x2 = -2 + -7x Solving -4 + -8x + x2 = -2 + -7x Solving for variable 'x'. Reorder the terms: -4 + 2 + -8x + 7x + x2 = -2 + -7x + 2 + 7x Combine like terms: -4 + 2 = -2 -2 + -8x + 7x + x2 = -2 + -7x + 2 + 7x Combine like terms: -8x + 7x = -1x -2 + -1x + x2 = -2 + -7x + 2 + 7x Reorder the terms: -2 + -1x + x2 = -2 + 2 + -7x + 7x Combine like terms: -2 + 2 = 0 -2 + -1x + x2 = 0 + -7x + 7x -2 + -1x + x2 = -7x + 7x Combine like terms: -7x + 7x = 0 -2 + -1x + x2 = 0 Factor a trinomial. (-1 + -1x)(2 + -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 '(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 = 2Solution
x = {-1, 2}
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