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Simplifying u2 + 16u + -64 = 0 Reorder the terms: -64 + 16u + u2 = 0 Solving -64 + 16u + u2 = 0 Solving for variable 'u'. Begin completing the square. Move the constant term to the right: Add '64' to each side of the equation. -64 + 16u + 64 + u2 = 0 + 64 Reorder the terms: -64 + 64 + 16u + u2 = 0 + 64 Combine like terms: -64 + 64 = 0 0 + 16u + u2 = 0 + 64 16u + u2 = 0 + 64 Combine like terms: 0 + 64 = 64 16u + u2 = 64 The u term is 16u. Take half its coefficient (8). Square it (64) and add it to both sides. Add '64' to each side of the equation. 16u + 64 + u2 = 64 + 64 Reorder the terms: 64 + 16u + u2 = 64 + 64 Combine like terms: 64 + 64 = 128 64 + 16u + u2 = 128 Factor a perfect square on the left side: (u + 8)(u + 8) = 128 Calculate the square root of the right side: 11.313708499 Break this problem into two subproblems by setting (u + 8) equal to 11.313708499 and -11.313708499.Subproblem 1
u + 8 = 11.313708499 Simplifying u + 8 = 11.313708499 Reorder the terms: 8 + u = 11.313708499 Solving 8 + u = 11.313708499 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + u = 11.313708499 + -8 Combine like terms: 8 + -8 = 0 0 + u = 11.313708499 + -8 u = 11.313708499 + -8 Combine like terms: 11.313708499 + -8 = 3.313708499 u = 3.313708499 Simplifying u = 3.313708499Subproblem 2
u + 8 = -11.313708499 Simplifying u + 8 = -11.313708499 Reorder the terms: 8 + u = -11.313708499 Solving 8 + u = -11.313708499 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + u = -11.313708499 + -8 Combine like terms: 8 + -8 = 0 0 + u = -11.313708499 + -8 u = -11.313708499 + -8 Combine like terms: -11.313708499 + -8 = -19.313708499 u = -19.313708499 Simplifying u = -19.313708499Solution
The solution to the problem is based on the solutions from the subproblems. u = {3.313708499, -19.313708499}
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