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Simplifying 10n2 + 10n + -4 = 4n2 Reorder the terms: -4 + 10n + 10n2 = 4n2 Solving -4 + 10n + 10n2 = 4n2 Solving for variable 'n'. Combine like terms: 10n2 + -4n2 = 6n2 -4 + 10n + 6n2 = 4n2 + -4n2 Combine like terms: 4n2 + -4n2 = 0 -4 + 10n + 6n2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-2 + 5n + 3n2) = 0 Factor a trinomial. 2((-2 + -1n)(1 + -3n)) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-2 + -1n)' equal to zero and attempt to solve: Simplifying -2 + -1n = 0 Solving -2 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1n = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1n = 0 + 2 -1n = 0 + 2 Combine like terms: 0 + 2 = 2 -1n = 2 Divide each side by '-1'. n = -2 Simplifying n = -2Subproblem 2
Set the factor '(1 + -3n)' equal to zero and attempt to solve: Simplifying 1 + -3n = 0 Solving 1 + -3n = 0 Move all terms containing n to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -3n = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3n = 0 + -1 -3n = 0 + -1 Combine like terms: 0 + -1 = -1 -3n = -1 Divide each side by '-3'. n = 0.3333333333 Simplifying n = 0.3333333333Solution
n = {-2, 0.3333333333}
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