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Simplifying 21x2 + 29x + -19 = -9 Reorder the terms: -19 + 29x + 21x2 = -9 Solving -19 + 29x + 21x2 = -9 Solving for variable 'x'. Reorder the terms: -19 + 9 + 29x + 21x2 = -9 + 9 Combine like terms: -19 + 9 = -10 -10 + 29x + 21x2 = -9 + 9 Combine like terms: -9 + 9 = 0 -10 + 29x + 21x2 = 0 Factor a trinomial. (-5 + -3x)(2 + -7x) = 0Subproblem 1
Set the factor '(-5 + -3x)' equal to zero and attempt to solve: Simplifying -5 + -3x = 0 Solving -5 + -3x = 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 + -3x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -3x = 0 + 5 -3x = 0 + 5 Combine like terms: 0 + 5 = 5 -3x = 5 Divide each side by '-3'. x = -1.666666667 Simplifying x = -1.666666667Subproblem 2
Set the factor '(2 + -7x)' equal to zero and attempt to solve: Simplifying 2 + -7x = 0 Solving 2 + -7x = 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 + -7x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7x = 0 + -2 -7x = 0 + -2 Combine like terms: 0 + -2 = -2 -7x = -2 Divide each side by '-7'. x = 0.2857142857 Simplifying x = 0.2857142857Solution
x = {-1.666666667, 0.2857142857}
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