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Simplifying (x + -2)(5x + -2) = 0 Reorder the terms: (-2 + x)(5x + -2) = 0 Reorder the terms: (-2 + x)(-2 + 5x) = 0 Multiply (-2 + x) * (-2 + 5x) (-2(-2 + 5x) + x(-2 + 5x)) = 0 ((-2 * -2 + 5x * -2) + x(-2 + 5x)) = 0 ((4 + -10x) + x(-2 + 5x)) = 0 (4 + -10x + (-2 * x + 5x * x)) = 0 (4 + -10x + (-2x + 5x2)) = 0 Combine like terms: -10x + -2x = -12x (4 + -12x + 5x2) = 0 Solving 4 + -12x + 5x2 = 0 Solving for variable 'x'. Factor a trinomial. (2 + -5x)(2 + -1x) = 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 '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2Solution
x = {0.4, 2}
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