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Simplifying -3u2 + 19u + -24 = 0 Reorder the terms: -24 + 19u + -3u2 = 0 Solving -24 + 19u + -3u2 = 0 Solving for variable 'u'. Begin completing the square. Divide all terms by -3 the coefficient of the squared term: Divide each side by '-3'. 8 + -6.333333333u + u2 = 0 Move the constant term to the right: Add '-8' to each side of the equation. 8 + -6.333333333u + -8 + u2 = 0 + -8 Reorder the terms: 8 + -8 + -6.333333333u + u2 = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -6.333333333u + u2 = 0 + -8 -6.333333333u + u2 = 0 + -8 Combine like terms: 0 + -8 = -8 -6.333333333u + u2 = -8 The u term is -6.333333333u. Take half its coefficient (-3.166666667). Square it (10.02777778) and add it to both sides. Add '10.02777778' to each side of the equation. -6.333333333u + 10.02777778 + u2 = -8 + 10.02777778 Reorder the terms: 10.02777778 + -6.333333333u + u2 = -8 + 10.02777778 Combine like terms: -8 + 10.02777778 = 2.02777778 10.02777778 + -6.333333333u + u2 = 2.02777778 Factor a perfect square on the left side: (u + -3.166666667)(u + -3.166666667) = 2.02777778 Calculate the square root of the right side: 1.424000625 Break this problem into two subproblems by setting (u + -3.166666667) equal to 1.424000625 and -1.424000625.Subproblem 1
u + -3.166666667 = 1.424000625 Simplifying u + -3.166666667 = 1.424000625 Reorder the terms: -3.166666667 + u = 1.424000625 Solving -3.166666667 + u = 1.424000625 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '3.166666667' to each side of the equation. -3.166666667 + 3.166666667 + u = 1.424000625 + 3.166666667 Combine like terms: -3.166666667 + 3.166666667 = 0.000000000 0.000000000 + u = 1.424000625 + 3.166666667 u = 1.424000625 + 3.166666667 Combine like terms: 1.424000625 + 3.166666667 = 4.590667292 u = 4.590667292 Simplifying u = 4.590667292Subproblem 2
u + -3.166666667 = -1.424000625 Simplifying u + -3.166666667 = -1.424000625 Reorder the terms: -3.166666667 + u = -1.424000625 Solving -3.166666667 + u = -1.424000625 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '3.166666667' to each side of the equation. -3.166666667 + 3.166666667 + u = -1.424000625 + 3.166666667 Combine like terms: -3.166666667 + 3.166666667 = 0.000000000 0.000000000 + u = -1.424000625 + 3.166666667 u = -1.424000625 + 3.166666667 Combine like terms: -1.424000625 + 3.166666667 = 1.742666042 u = 1.742666042 Simplifying u = 1.742666042Solution
The solution to the problem is based on the solutions from the subproblems. u = {4.590667292, 1.742666042}
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