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Simplifying (2x + -4)(-1x + 5) = 0 Reorder the terms: (-4 + 2x)(-1x + 5) = 0 Reorder the terms: (-4 + 2x)(5 + -1x) = 0 Multiply (-4 + 2x) * (5 + -1x) (-4(5 + -1x) + 2x * (5 + -1x)) = 0 ((5 * -4 + -1x * -4) + 2x * (5 + -1x)) = 0 ((-20 + 4x) + 2x * (5 + -1x)) = 0 (-20 + 4x + (5 * 2x + -1x * 2x)) = 0 (-20 + 4x + (10x + -2x2)) = 0 Combine like terms: 4x + 10x = 14x (-20 + 14x + -2x2) = 0 Solving -20 + 14x + -2x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(-10 + 7x + -1x2) = 0 Factor a trinomial. 2((-5 + x)(2 + -1x)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-5 + x)' equal to zero and attempt to solve: Simplifying -5 + x = 0 Solving -5 + x = 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 + x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + x = 0 + 5 x = 0 + 5 Combine like terms: 0 + 5 = 5 x = 5 Simplifying x = 5Subproblem 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 = {5, 2}
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