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Simplifying 5n2 + n + 1 = 0 Reorder the terms: 1 + n + 5n2 = 0 Solving 1 + n + 5n2 = 0 Solving for variable 'n'. Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 0.2 + 0.2n + n2 = 0 Move the constant term to the right: Add '-0.2' to each side of the equation. 0.2 + 0.2n + -0.2 + n2 = 0 + -0.2 Reorder the terms: 0.2 + -0.2 + 0.2n + n2 = 0 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + 0.2n + n2 = 0 + -0.2 0.2n + n2 = 0 + -0.2 Combine like terms: 0 + -0.2 = -0.2 0.2n + n2 = -0.2 The n term is n. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.2n + 0.25 + n2 = -0.2 + 0.25 Reorder the terms: 0.25 + 0.2n + n2 = -0.2 + 0.25 Combine like terms: -0.2 + 0.25 = 0.05 0.25 + 0.2n + n2 = 0.05 Factor a perfect square on the left side: (n + 0.5)(n + 0.5) = 0.05 Calculate the square root of the right side: 0.223606798 Break this problem into two subproblems by setting (n + 0.5) equal to 0.223606798 and -0.223606798.Subproblem 1
n + 0.5 = 0.223606798 Simplifying n + 0.5 = 0.223606798 Reorder the terms: 0.5 + n = 0.223606798 Solving 0.5 + n = 0.223606798 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + n = 0.223606798 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = 0.223606798 + -0.5 n = 0.223606798 + -0.5 Combine like terms: 0.223606798 + -0.5 = -0.276393202 n = -0.276393202 Simplifying n = -0.276393202Subproblem 2
n + 0.5 = -0.223606798 Simplifying n + 0.5 = -0.223606798 Reorder the terms: 0.5 + n = -0.223606798 Solving 0.5 + n = -0.223606798 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + n = -0.223606798 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + n = -0.223606798 + -0.5 n = -0.223606798 + -0.5 Combine like terms: -0.223606798 + -0.5 = -0.723606798 n = -0.723606798 Simplifying n = -0.723606798Solution
The solution to the problem is based on the solutions from the subproblems. n = {-0.276393202, -0.723606798}
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