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Simplifying 4u2 + -2u + -1 = 0 Reorder the terms: -1 + -2u + 4u2 = 0 Solving -1 + -2u + 4u2 = 0 Solving for variable 'u'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. -0.25 + -0.5u + u2 = 0 Move the constant term to the right: Add '0.25' to each side of the equation. -0.25 + -0.5u + 0.25 + u2 = 0 + 0.25 Reorder the terms: -0.25 + 0.25 + -0.5u + u2 = 0 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + -0.5u + u2 = 0 + 0.25 -0.5u + u2 = 0 + 0.25 Combine like terms: 0 + 0.25 = 0.25 -0.5u + u2 = 0.25 The u term is -0.5u. Take half its coefficient (-0.25). Square it (0.0625) and add it to both sides. Add '0.0625' to each side of the equation. -0.5u + 0.0625 + u2 = 0.25 + 0.0625 Reorder the terms: 0.0625 + -0.5u + u2 = 0.25 + 0.0625 Combine like terms: 0.25 + 0.0625 = 0.3125 0.0625 + -0.5u + u2 = 0.3125 Factor a perfect square on the left side: (u + -0.25)(u + -0.25) = 0.3125 Calculate the square root of the right side: 0.559016994 Break this problem into two subproblems by setting (u + -0.25) equal to 0.559016994 and -0.559016994.Subproblem 1
u + -0.25 = 0.559016994 Simplifying u + -0.25 = 0.559016994 Reorder the terms: -0.25 + u = 0.559016994 Solving -0.25 + u = 0.559016994 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + u = 0.559016994 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + u = 0.559016994 + 0.25 u = 0.559016994 + 0.25 Combine like terms: 0.559016994 + 0.25 = 0.809016994 u = 0.809016994 Simplifying u = 0.809016994Subproblem 2
u + -0.25 = -0.559016994 Simplifying u + -0.25 = -0.559016994 Reorder the terms: -0.25 + u = -0.559016994 Solving -0.25 + u = -0.559016994 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + u = -0.559016994 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + u = -0.559016994 + 0.25 u = -0.559016994 + 0.25 Combine like terms: -0.559016994 + 0.25 = -0.309016994 u = -0.309016994 Simplifying u = -0.309016994Solution
The solution to the problem is based on the solutions from the subproblems. u = {0.809016994, -0.309016994}
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