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Simplifying 14X2 + 20X + -16 = 0 Reorder the terms: -16 + 20X + 14X2 = 0 Solving -16 + 20X + 14X2 = 0 Solving for variable 'X'. Factor out the Greatest Common Factor (GCF), '2'. 2(-8 + 10X + 7X2) = 0 Factor a trinomial. 2((-2 + -1X)(4 + -7X)) = 0 Ignore the factor 2.Subproblem 1
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 = -2Subproblem 2
Set the factor '(4 + -7X)' equal to zero and attempt to solve: Simplifying 4 + -7X = 0 Solving 4 + -7X = 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 + -7X = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -7X = 0 + -4 -7X = 0 + -4 Combine like terms: 0 + -4 = -4 -7X = -4 Divide each side by '-7'. X = 0.5714285714 Simplifying X = 0.5714285714Solution
X = {-2, 0.5714285714}
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