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Simplifying (7 + -3x)(-2 + -5x) = 0 Multiply (7 + -3x) * (-2 + -5x) (7(-2 + -5x) + -3x * (-2 + -5x)) = 0 ((-2 * 7 + -5x * 7) + -3x * (-2 + -5x)) = 0 ((-14 + -35x) + -3x * (-2 + -5x)) = 0 (-14 + -35x + (-2 * -3x + -5x * -3x)) = 0 (-14 + -35x + (6x + 15x2)) = 0 Combine like terms: -35x + 6x = -29x (-14 + -29x + 15x2) = 0 Solving -14 + -29x + 15x2 = 0 Solving for variable 'x'. Factor a trinomial. (-2 + -5x)(7 + -3x) = 0Subproblem 1
Set the factor '(-2 + -5x)' equal to zero and attempt to solve: Simplifying -2 + -5x = 0 Solving -2 + -5x = 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 + -5x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -5x = 0 + 2 -5x = 0 + 2 Combine like terms: 0 + 2 = 2 -5x = 2 Divide each side by '-5'. x = -0.4 Simplifying x = -0.4Subproblem 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 = {-0.4, 2.333333333}
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