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Simplifying 5x(2x + 1) + -3(2x + 1) = 0 Reorder the terms: 5x(1 + 2x) + -3(2x + 1) = 0 (1 * 5x + 2x * 5x) + -3(2x + 1) = 0 (5x + 10x2) + -3(2x + 1) = 0 Reorder the terms: 5x + 10x2 + -3(1 + 2x) = 0 5x + 10x2 + (1 * -3 + 2x * -3) = 0 5x + 10x2 + (-3 + -6x) = 0 Reorder the terms: -3 + 5x + -6x + 10x2 = 0 Combine like terms: 5x + -6x = -1x -3 + -1x + 10x2 = 0 Solving -3 + -1x + 10x2 = 0 Solving for variable 'x'. Factor a trinomial. (-1 + -2x)(3 + -5x) = 0Subproblem 1
Set the factor '(-1 + -2x)' equal to zero and attempt to solve: Simplifying -1 + -2x = 0 Solving -1 + -2x = 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 + -2x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2x = 0 + 1 -2x = 0 + 1 Combine like terms: 0 + 1 = 1 -2x = 1 Divide each side by '-2'. x = -0.5 Simplifying x = -0.5Subproblem 2
Set the factor '(3 + -5x)' equal to zero and attempt to solve: Simplifying 3 + -5x = 0 Solving 3 + -5x = 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 + -5x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -5x = 0 + -3 -5x = 0 + -3 Combine like terms: 0 + -3 = -3 -5x = -3 Divide each side by '-5'. x = 0.6 Simplifying x = 0.6Solution
x = {-0.5, 0.6}
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