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Simplifying 8x2 + 11x + -19 = -9 Reorder the terms: -19 + 11x + 8x2 = -9 Solving -19 + 11x + 8x2 = -9 Solving for variable 'x'. Reorder the terms: -19 + 9 + 11x + 8x2 = -9 + 9 Combine like terms: -19 + 9 = -10 -10 + 11x + 8x2 = -9 + 9 Combine like terms: -9 + 9 = 0 -10 + 11x + 8x2 = 0 Factor a trinomial. (-2 + -1x)(5 + -8x) = 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 '(5 + -8x)' equal to zero and attempt to solve: Simplifying 5 + -8x = 0 Solving 5 + -8x = 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 + -8x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -8x = 0 + -5 -8x = 0 + -5 Combine like terms: 0 + -5 = -5 -8x = -5 Divide each side by '-8'. x = 0.625 Simplifying x = 0.625Solution
x = {-2, 0.625}
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