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Simplifying (5x + 1)(4x + 3) = 80x Reorder the terms: (1 + 5x)(4x + 3) = 80x Reorder the terms: (1 + 5x)(3 + 4x) = 80x Multiply (1 + 5x) * (3 + 4x) (1(3 + 4x) + 5x * (3 + 4x)) = 80x ((3 * 1 + 4x * 1) + 5x * (3 + 4x)) = 80x ((3 + 4x) + 5x * (3 + 4x)) = 80x (3 + 4x + (3 * 5x + 4x * 5x)) = 80x (3 + 4x + (15x + 20x2)) = 80x Combine like terms: 4x + 15x = 19x (3 + 19x + 20x2) = 80x Solving 3 + 19x + 20x2 = 80x Solving for variable 'x'. Reorder the terms: 3 + 19x + -80x + 20x2 = 80x + -80x Combine like terms: 19x + -80x = -61x 3 + -61x + 20x2 = 80x + -80x Combine like terms: 80x + -80x = 0 3 + -61x + 20x2 = 0 Factor a trinomial. (1 + -20x)(3 + -1x) = 0Subproblem 1
Set the factor '(1 + -20x)' equal to zero and attempt to solve: Simplifying 1 + -20x = 0 Solving 1 + -20x = 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 + -20x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -20x = 0 + -1 -20x = 0 + -1 Combine like terms: 0 + -1 = -1 -20x = -1 Divide each side by '-20'. x = 0.05 Simplifying x = 0.05Subproblem 2
Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3Solution
x = {0.05, 3}
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