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Simplifying u2 + -5u + -5 = 0 Reorder the terms: -5 + -5u + u2 = 0 Solving -5 + -5u + u2 = 0 Solving for variable 'u'. Begin completing the square. Move the constant term to the right: Add '5' to each side of the equation. -5 + -5u + 5 + u2 = 0 + 5 Reorder the terms: -5 + 5 + -5u + u2 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -5u + u2 = 0 + 5 -5u + u2 = 0 + 5 Combine like terms: 0 + 5 = 5 -5u + u2 = 5 The u term is -5u. 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. -5u + 6.25 + u2 = 5 + 6.25 Reorder the terms: 6.25 + -5u + u2 = 5 + 6.25 Combine like terms: 5 + 6.25 = 11.25 6.25 + -5u + u2 = 11.25 Factor a perfect square on the left side: (u + -2.5)(u + -2.5) = 11.25 Calculate the square root of the right side: 3.354101966 Break this problem into two subproblems by setting (u + -2.5) equal to 3.354101966 and -3.354101966.Subproblem 1
u + -2.5 = 3.354101966 Simplifying u + -2.5 = 3.354101966 Reorder the terms: -2.5 + u = 3.354101966 Solving -2.5 + u = 3.354101966 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + u = 3.354101966 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + u = 3.354101966 + 2.5 u = 3.354101966 + 2.5 Combine like terms: 3.354101966 + 2.5 = 5.854101966 u = 5.854101966 Simplifying u = 5.854101966Subproblem 2
u + -2.5 = -3.354101966 Simplifying u + -2.5 = -3.354101966 Reorder the terms: -2.5 + u = -3.354101966 Solving -2.5 + u = -3.354101966 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + u = -3.354101966 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + u = -3.354101966 + 2.5 u = -3.354101966 + 2.5 Combine like terms: -3.354101966 + 2.5 = -0.854101966 u = -0.854101966 Simplifying u = -0.854101966Solution
The solution to the problem is based on the solutions from the subproblems. u = {5.854101966, -0.854101966}
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