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Simplifying 39x2 + 55x + 4 = 0 Reorder the terms: 4 + 55x + 39x2 = 0 Solving 4 + 55x + 39x2 = 0 Solving for variable 'x'. Factor a trinomial. (4 + 3x)(1 + 13x) = 0Subproblem 1
Set the factor '(4 + 3x)' equal to zero and attempt to solve: Simplifying 4 + 3x = 0 Solving 4 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 3x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3x = 0 + -4 3x = 0 + -4 Combine like terms: 0 + -4 = -4 3x = -4 Divide each side by '3'. x = -1.333333333 Simplifying x = -1.333333333Subproblem 2
Set the factor '(1 + 13x)' equal to zero and attempt to solve: Simplifying 1 + 13x = 0 Solving 1 + 13x = 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 + 13x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 13x = 0 + -1 13x = 0 + -1 Combine like terms: 0 + -1 = -1 13x = -1 Divide each side by '13'. x = -0.07692307692 Simplifying x = -0.07692307692Solution
x = {-1.333333333, -0.07692307692}
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