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Simplifying x2 + -7x + 2 = -8x + 4 Reorder the terms: 2 + -7x + x2 = -8x + 4 Reorder the terms: 2 + -7x + x2 = 4 + -8x Solving 2 + -7x + x2 = 4 + -8x Solving for variable 'x'. Reorder the terms: 2 + -4 + -7x + 8x + x2 = 4 + -8x + -4 + 8x Combine like terms: 2 + -4 = -2 -2 + -7x + 8x + x2 = 4 + -8x + -4 + 8x Combine like terms: -7x + 8x = 1x -2 + 1x + x2 = 4 + -8x + -4 + 8x Reorder the terms: -2 + 1x + x2 = 4 + -4 + -8x + 8x Combine like terms: 4 + -4 = 0 -2 + 1x + x2 = 0 + -8x + 8x -2 + 1x + x2 = -8x + 8x Combine like terms: -8x + 8x = 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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