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Simplifying 0 = 5x2 + -25x + 30 Reorder the terms: 0 = 30 + -25x + 5x2 Solving 0 = 30 + -25x + 5x2 Solving for variable 'x'. Combine like terms: 0 + -30 = -30 -30 + 25x + -5x2 = 30 + -25x + 5x2 + -30 + 25x + -5x2 Reorder the terms: -30 + 25x + -5x2 = 30 + -30 + -25x + 25x + 5x2 + -5x2 Combine like terms: 30 + -30 = 0 -30 + 25x + -5x2 = 0 + -25x + 25x + 5x2 + -5x2 -30 + 25x + -5x2 = -25x + 25x + 5x2 + -5x2 Combine like terms: -25x + 25x = 0 -30 + 25x + -5x2 = 0 + 5x2 + -5x2 -30 + 25x + -5x2 = 5x2 + -5x2 Combine like terms: 5x2 + -5x2 = 0 -30 + 25x + -5x2 = 0 Factor out the Greatest Common Factor (GCF), '5'. 5(-6 + 5x + -1x2) = 0 Factor a trinomial. 5((-3 + x)(2 + -1x)) = 0 Ignore the factor 5.Subproblem 1
Set the factor '(-3 + x)' equal to zero and attempt to solve: Simplifying -3 + x = 0 Solving -3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + x = 0 + 3 x = 0 + 3 Combine like terms: 0 + 3 = 3 x = 3 Simplifying x = 3Subproblem 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 = {3, 2}
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