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Simplifying 2n2 + -14n + 2 = 0 Reorder the terms: 2 + -14n + 2n2 = 0 Solving 2 + -14n + 2n2 = 0 Solving for variable 'n'. Factor out the Greatest Common Factor (GCF), '2'. 2(1 + -7n + n2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(1 + -7n + n2)' equal to zero and attempt to solve: Simplifying 1 + -7n + n2 = 0 Solving 1 + -7n + n2 = 0 Begin completing the square. Move the constant term to the right: Add '-1' to each side of the equation. 1 + -7n + -1 + n2 = 0 + -1 Reorder the terms: 1 + -1 + -7n + n2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -7n + n2 = 0 + -1 -7n + n2 = 0 + -1 Combine like terms: 0 + -1 = -1 -7n + n2 = -1 The n term is -7n. Take half its coefficient (-3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. -7n + 12.25 + n2 = -1 + 12.25 Reorder the terms: 12.25 + -7n + n2 = -1 + 12.25 Combine like terms: -1 + 12.25 = 11.25 12.25 + -7n + n2 = 11.25 Factor a perfect square on the left side: (n + -3.5)(n + -3.5) = 11.25 Calculate the square root of the right side: 3.354101966 Break this problem into two subproblems by setting (n + -3.5) equal to 3.354101966 and -3.354101966.Subproblem 1
n + -3.5 = 3.354101966 Simplifying n + -3.5 = 3.354101966 Reorder the terms: -3.5 + n = 3.354101966 Solving -3.5 + n = 3.354101966 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + n = 3.354101966 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + n = 3.354101966 + 3.5 n = 3.354101966 + 3.5 Combine like terms: 3.354101966 + 3.5 = 6.854101966 n = 6.854101966 Simplifying n = 6.854101966Subproblem 2
n + -3.5 = -3.354101966 Simplifying n + -3.5 = -3.354101966 Reorder the terms: -3.5 + n = -3.354101966 Solving -3.5 + n = -3.354101966 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + n = -3.354101966 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + n = -3.354101966 + 3.5 n = -3.354101966 + 3.5 Combine like terms: -3.354101966 + 3.5 = 0.145898034 n = 0.145898034 Simplifying n = 0.145898034Solution
The solution to the problem is based on the solutions from the subproblems. n = {6.854101966, 0.145898034}Solution
n = {6.854101966, 0.145898034}
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