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Simplifying 2u2 + -7u + 3 = 2 Reorder the terms: 3 + -7u + 2u2 = 2 Solving 3 + -7u + 2u2 = 2 Solving for variable 'u'. Reorder the terms: 3 + -2 + -7u + 2u2 = 2 + -2 Combine like terms: 3 + -2 = 1 1 + -7u + 2u2 = 2 + -2 Combine like terms: 2 + -2 = 0 1 + -7u + 2u2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 0.5 + -3.5u + u2 = 0 Move the constant term to the right: Add '-0.5' to each side of the equation. 0.5 + -3.5u + -0.5 + u2 = 0 + -0.5 Reorder the terms: 0.5 + -0.5 + -3.5u + u2 = 0 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + -3.5u + u2 = 0 + -0.5 -3.5u + u2 = 0 + -0.5 Combine like terms: 0 + -0.5 = -0.5 -3.5u + u2 = -0.5 The u term is -3.5u. Take half its coefficient (-1.75). Square it (3.0625) and add it to both sides. Add '3.0625' to each side of the equation. -3.5u + 3.0625 + u2 = -0.5 + 3.0625 Reorder the terms: 3.0625 + -3.5u + u2 = -0.5 + 3.0625 Combine like terms: -0.5 + 3.0625 = 2.5625 3.0625 + -3.5u + u2 = 2.5625 Factor a perfect square on the left side: (u + -1.75)(u + -1.75) = 2.5625 Calculate the square root of the right side: 1.600781059 Break this problem into two subproblems by setting (u + -1.75) equal to 1.600781059 and -1.600781059.Subproblem 1
u + -1.75 = 1.600781059 Simplifying u + -1.75 = 1.600781059 Reorder the terms: -1.75 + u = 1.600781059 Solving -1.75 + u = 1.600781059 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + u = 1.600781059 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + u = 1.600781059 + 1.75 u = 1.600781059 + 1.75 Combine like terms: 1.600781059 + 1.75 = 3.350781059 u = 3.350781059 Simplifying u = 3.350781059Subproblem 2
u + -1.75 = -1.600781059 Simplifying u + -1.75 = -1.600781059 Reorder the terms: -1.75 + u = -1.600781059 Solving -1.75 + u = -1.600781059 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '1.75' to each side of the equation. -1.75 + 1.75 + u = -1.600781059 + 1.75 Combine like terms: -1.75 + 1.75 = 0.00 0.00 + u = -1.600781059 + 1.75 u = -1.600781059 + 1.75 Combine like terms: -1.600781059 + 1.75 = 0.149218941 u = 0.149218941 Simplifying u = 0.149218941Solution
The solution to the problem is based on the solutions from the subproblems. u = {3.350781059, 0.149218941}
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