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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 = 1.25 6.25 + -5u + u2 = 1.25 Factor a perfect square on the left side: (u + -2.5)(u + -2.5) = 1.25 Calculate the square root of the right side: 1.118033989 Break this problem into two subproblems by setting (u + -2.5) equal to 1.118033989 and -1.118033989.Subproblem 1
u + -2.5 = 1.118033989 Simplifying u + -2.5 = 1.118033989 Reorder the terms: -2.5 + u = 1.118033989 Solving -2.5 + u = 1.118033989 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 = 1.118033989 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + u = 1.118033989 + 2.5 u = 1.118033989 + 2.5 Combine like terms: 1.118033989 + 2.5 = 3.618033989 u = 3.618033989 Simplifying u = 3.618033989Subproblem 2
u + -2.5 = -1.118033989 Simplifying u + -2.5 = -1.118033989 Reorder the terms: -2.5 + u = -1.118033989 Solving -2.5 + u = -1.118033989 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 = -1.118033989 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + u = -1.118033989 + 2.5 u = -1.118033989 + 2.5 Combine like terms: -1.118033989 + 2.5 = 1.381966011 u = 1.381966011 Simplifying u = 1.381966011Solution
The solution to the problem is based on the solutions from the subproblems. u = {3.618033989, 1.381966011}
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