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Simplifying (3x + -7)(5x + 8) = 0 Reorder the terms: (-7 + 3x)(5x + 8) = 0 Reorder the terms: (-7 + 3x)(8 + 5x) = 0 Multiply (-7 + 3x) * (8 + 5x) (-7(8 + 5x) + 3x * (8 + 5x)) = 0 ((8 * -7 + 5x * -7) + 3x * (8 + 5x)) = 0 ((-56 + -35x) + 3x * (8 + 5x)) = 0 (-56 + -35x + (8 * 3x + 5x * 3x)) = 0 (-56 + -35x + (24x + 15x2)) = 0 Combine like terms: -35x + 24x = -11x (-56 + -11x + 15x2) = 0 Solving -56 + -11x + 15x2 = 0 Solving for variable 'x'. Factor a trinomial. (-8 + -5x)(7 + -3x) = 0Subproblem 1
Set the factor '(-8 + -5x)' equal to zero and attempt to solve: Simplifying -8 + -5x = 0 Solving -8 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -5x = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -5x = 0 + 8 -5x = 0 + 8 Combine like terms: 0 + 8 = 8 -5x = 8 Divide each side by '-5'. x = -1.6 Simplifying x = -1.6Subproblem 2
Set the factor '(7 + -3x)' equal to zero and attempt to solve: Simplifying 7 + -3x = 0 Solving 7 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -3x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -3x = 0 + -7 -3x = 0 + -7 Combine like terms: 0 + -7 = -7 -3x = -7 Divide each side by '-3'. x = 2.333333333 Simplifying x = 2.333333333Solution
x = {-1.6, 2.333333333}
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