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Simplifying (4x + -5)(7x + 2) = 0 Reorder the terms: (-5 + 4x)(7x + 2) = 0 Reorder the terms: (-5 + 4x)(2 + 7x) = 0 Multiply (-5 + 4x) * (2 + 7x) (-5(2 + 7x) + 4x * (2 + 7x)) = 0 ((2 * -5 + 7x * -5) + 4x * (2 + 7x)) = 0 ((-10 + -35x) + 4x * (2 + 7x)) = 0 (-10 + -35x + (2 * 4x + 7x * 4x)) = 0 (-10 + -35x + (8x + 28x2)) = 0 Combine like terms: -35x + 8x = -27x (-10 + -27x + 28x2) = 0 Solving -10 + -27x + 28x2 = 0 Solving for variable 'x'. Factor a trinomial. (-2 + -7x)(5 + -4x) = 0Subproblem 1
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 = -0.2857142857Subproblem 2
Set the factor '(5 + -4x)' equal to zero and attempt to solve: Simplifying 5 + -4x = 0 Solving 5 + -4x = 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 + -4x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4x = 0 + -5 -4x = 0 + -5 Combine like terms: 0 + -5 = -5 -4x = -5 Divide each side by '-4'. x = 1.25 Simplifying x = 1.25Solution
x = {-0.2857142857, 1.25}
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