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Simplifying x(2x + -9) = 11 Reorder the terms: x(-9 + 2x) = 11 (-9 * x + 2x * x) = 11 (-9x + 2x2) = 11 Solving -9x + 2x2 = 11 Solving for variable 'x'. Reorder the terms: -11 + -9x + 2x2 = 11 + -11 Combine like terms: 11 + -11 = 0 -11 + -9x + 2x2 = 0 Factor a trinomial. (-1 + -1x)(11 + -2x) = 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 '(11 + -2x)' equal to zero and attempt to solve: Simplifying 11 + -2x = 0 Solving 11 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + -2x = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -2x = 0 + -11 -2x = 0 + -11 Combine like terms: 0 + -11 = -11 -2x = -11 Divide each side by '-2'. x = 5.5 Simplifying x = 5.5Solution
x = {-1, 5.5}
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