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Simplifying n2 + 5n + 6 = 70 Reorder the terms: 6 + 5n + n2 = 70 Solving 6 + 5n + n2 = 70 Solving for variable 'n'. Reorder the terms: 6 + -70 + 5n + n2 = 70 + -70 Combine like terms: 6 + -70 = -64 -64 + 5n + n2 = 70 + -70 Combine like terms: 70 + -70 = 0 -64 + 5n + n2 = 0 Begin completing the square. Move the constant term to the right: Add '64' to each side of the equation. -64 + 5n + 64 + n2 = 0 + 64 Reorder the terms: -64 + 64 + 5n + n2 = 0 + 64 Combine like terms: -64 + 64 = 0 0 + 5n + n2 = 0 + 64 5n + n2 = 0 + 64 Combine like terms: 0 + 64 = 64 5n + n2 = 64 The n term is 5n. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5n + 6.25 + n2 = 64 + 6.25 Reorder the terms: 6.25 + 5n + n2 = 64 + 6.25 Combine like terms: 64 + 6.25 = 70.25 6.25 + 5n + n2 = 70.25 Factor a perfect square on the left side: (n + 2.5)(n + 2.5) = 70.25 Calculate the square root of the right side: 8.381527307 Break this problem into two subproblems by setting (n + 2.5) equal to 8.381527307 and -8.381527307.Subproblem 1
n + 2.5 = 8.381527307 Simplifying n + 2.5 = 8.381527307 Reorder the terms: 2.5 + n = 8.381527307 Solving 2.5 + n = 8.381527307 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + n = 8.381527307 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + n = 8.381527307 + -2.5 n = 8.381527307 + -2.5 Combine like terms: 8.381527307 + -2.5 = 5.881527307 n = 5.881527307 Simplifying n = 5.881527307Subproblem 2
n + 2.5 = -8.381527307 Simplifying n + 2.5 = -8.381527307 Reorder the terms: 2.5 + n = -8.381527307 Solving 2.5 + n = -8.381527307 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + n = -8.381527307 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + n = -8.381527307 + -2.5 n = -8.381527307 + -2.5 Combine like terms: -8.381527307 + -2.5 = -10.881527307 n = -10.881527307 Simplifying n = -10.881527307Solution
The solution to the problem is based on the solutions from the subproblems. n = {5.881527307, -10.881527307}
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