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Simplifying 7x + -9 = 1 + -8x2 + 5x Reorder the terms: -9 + 7x = 1 + -8x2 + 5x Reorder the terms: -9 + 7x = 1 + 5x + -8x2 Solving -9 + 7x = 1 + 5x + -8x2 Solving for variable 'x'. Reorder the terms: -9 + -1 + 7x + -5x + 8x2 = 1 + 5x + -8x2 + -1 + -5x + 8x2 Combine like terms: -9 + -1 = -10 -10 + 7x + -5x + 8x2 = 1 + 5x + -8x2 + -1 + -5x + 8x2 Combine like terms: 7x + -5x = 2x -10 + 2x + 8x2 = 1 + 5x + -8x2 + -1 + -5x + 8x2 Reorder the terms: -10 + 2x + 8x2 = 1 + -1 + 5x + -5x + -8x2 + 8x2 Combine like terms: 1 + -1 = 0 -10 + 2x + 8x2 = 0 + 5x + -5x + -8x2 + 8x2 -10 + 2x + 8x2 = 5x + -5x + -8x2 + 8x2 Combine like terms: 5x + -5x = 0 -10 + 2x + 8x2 = 0 + -8x2 + 8x2 -10 + 2x + 8x2 = -8x2 + 8x2 Combine like terms: -8x2 + 8x2 = 0 -10 + 2x + 8x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-5 + x + 4x2) = 0 Factor a trinomial. 2((-5 + -4x)(1 + -1x)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-5 + -4x)' equal to zero and attempt to solve: Simplifying -5 + -4x = 0 Solving -5 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -4x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -4x = 0 + 5 -4x = 0 + 5 Combine like terms: 0 + 5 = 5 -4x = 5 Divide each side by '-4'. x = -1.25 Simplifying x = -1.25Subproblem 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 = {-1.25, 1}
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