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Simplifying 15 = 8x2 + 14x Reorder the terms: 15 = 14x + 8x2 Solving 15 = 14x + 8x2 Solving for variable 'x'. Reorder the terms: 15 + -14x + -8x2 = 14x + -14x + 8x2 + -8x2 Combine like terms: 14x + -14x = 0 15 + -14x + -8x2 = 0 + 8x2 + -8x2 15 + -14x + -8x2 = 8x2 + -8x2 Combine like terms: 8x2 + -8x2 = 0 15 + -14x + -8x2 = 0 Factor a trinomial. (3 + -4x)(5 + 2x) = 0Subproblem 1
Set the factor '(3 + -4x)' equal to zero and attempt to solve: Simplifying 3 + -4x = 0 Solving 3 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -4x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4x = 0 + -3 -4x = 0 + -3 Combine like terms: 0 + -3 = -3 -4x = -3 Divide each side by '-4'. x = 0.75 Simplifying x = 0.75Subproblem 2
Set the factor '(5 + 2x)' equal to zero and attempt to solve: Simplifying 5 + 2x = 0 Solving 5 + 2x = 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 + 2x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 2x = 0 + -5 2x = 0 + -5 Combine like terms: 0 + -5 = -5 2x = -5 Divide each side by '2'. x = -2.5 Simplifying x = -2.5Solution
x = {0.75, -2.5}
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