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Simplifying n2 + 4n = 117 Reorder the terms: 4n + n2 = 117 Solving 4n + n2 = 117 Solving for variable 'n'. Reorder the terms: -117 + 4n + n2 = 117 + -117 Combine like terms: 117 + -117 = 0 -117 + 4n + n2 = 0 Factor a trinomial. (-13 + -1n)(9 + -1n) = 0Subproblem 1
Set the factor '(-13 + -1n)' equal to zero and attempt to solve: Simplifying -13 + -1n = 0 Solving -13 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + -1n = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -1n = 0 + 13 -1n = 0 + 13 Combine like terms: 0 + 13 = 13 -1n = 13 Divide each side by '-1'. n = -13 Simplifying n = -13Subproblem 2
Set the factor '(9 + -1n)' equal to zero and attempt to solve: Simplifying 9 + -1n = 0 Solving 9 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1n = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1n = 0 + -9 -1n = 0 + -9 Combine like terms: 0 + -9 = -9 -1n = -9 Divide each side by '-1'. n = 9 Simplifying n = 9Solution
n = {-13, 9}
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