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Simplifying 9x2 + -80x + -1449 = 0 Reorder the terms: -1449 + -80x + 9x2 = 0 Solving -1449 + -80x + 9x2 = 0 Solving for variable 'x'. Factor a trinomial. (-9 + -1x)(161 + -9x) = 0Subproblem 1
Set the factor '(-9 + -1x)' equal to zero and attempt to solve: Simplifying -9 + -1x = 0 Solving -9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1x = 0 + 9 -1x = 0 + 9 Combine like terms: 0 + 9 = 9 -1x = 9 Divide each side by '-1'. x = -9 Simplifying x = -9Subproblem 2
Set the factor '(161 + -9x)' equal to zero and attempt to solve: Simplifying 161 + -9x = 0 Solving 161 + -9x = 0 Move all terms containing x to the left, all other terms to the right. Add '-161' to each side of the equation. 161 + -161 + -9x = 0 + -161 Combine like terms: 161 + -161 = 0 0 + -9x = 0 + -161 -9x = 0 + -161 Combine like terms: 0 + -161 = -161 -9x = -161 Divide each side by '-9'. x = 17.88888889 Simplifying x = 17.88888889Solution
x = {-9, 17.88888889}
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