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Simplifying 2x + 40 + 4x2 = 6x2 Reorder the terms: 40 + 2x + 4x2 = 6x2 Solving 40 + 2x + 4x2 = 6x2 Solving for variable 'x'. Combine like terms: 4x2 + -6x2 = -2x2 40 + 2x + -2x2 = 6x2 + -6x2 Combine like terms: 6x2 + -6x2 = 0 40 + 2x + -2x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(20 + x + -1x2) = 0 Factor a trinomial. 2((5 + -1x)(4 + x)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 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 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5Subproblem 2
Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4Solution
x = {5, -4}
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