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Simplifying 8n2 + -72n = -112 Reorder the terms: -72n + 8n2 = -112 Solving -72n + 8n2 = -112 Solving for variable 'n'. Reorder the terms: 112 + -72n + 8n2 = -112 + 112 Combine like terms: -112 + 112 = 0 112 + -72n + 8n2 = 0 Factor out the Greatest Common Factor (GCF), '8'. 8(14 + -9n + n2) = 0 Factor a trinomial. 8((2 + -1n)(7 + -1n)) = 0 Ignore the factor 8.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 '(7 + -1n)' equal to zero and attempt to solve: Simplifying 7 + -1n = 0 Solving 7 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1n = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1n = 0 + -7 -1n = 0 + -7 Combine like terms: 0 + -7 = -7 -1n = -7 Divide each side by '-1'. n = 7 Simplifying n = 7Solution
n = {2, 7}
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