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Simplifying 2x2 + 9x = x2 + 4x + 6 Reorder the terms: 9x + 2x2 = x2 + 4x + 6 Reorder the terms: 9x + 2x2 = 6 + 4x + x2 Solving 9x + 2x2 = 6 + 4x + x2 Solving for variable 'x'. Reorder the terms: -6 + 9x + -4x + 2x2 + -1x2 = 6 + 4x + x2 + -6 + -4x + -1x2 Combine like terms: 9x + -4x = 5x -6 + 5x + 2x2 + -1x2 = 6 + 4x + x2 + -6 + -4x + -1x2 Combine like terms: 2x2 + -1x2 = 1x2 -6 + 5x + 1x2 = 6 + 4x + x2 + -6 + -4x + -1x2 Reorder the terms: -6 + 5x + 1x2 = 6 + -6 + 4x + -4x + x2 + -1x2 Combine like terms: 6 + -6 = 0 -6 + 5x + 1x2 = 0 + 4x + -4x + x2 + -1x2 -6 + 5x + 1x2 = 4x + -4x + x2 + -1x2 Combine like terms: 4x + -4x = 0 -6 + 5x + 1x2 = 0 + x2 + -1x2 -6 + 5x + 1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -6 + 5x + 1x2 = 0 Factor a trinomial. (-6 + -1x)(1 + -1x) = 0Subproblem 1
Set the factor '(-6 + -1x)' equal to zero and attempt to solve: Simplifying -6 + -1x = 0 Solving -6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1x = 0 + 6 -1x = 0 + 6 Combine like terms: 0 + 6 = 6 -1x = 6 Divide each side by '-1'. x = -6 Simplifying x = -6Subproblem 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 = {-6, 1}
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