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Simplifying 9u2 + -3u + 25 = 0 Reorder the terms: 25 + -3u + 9u2 = 0 Solving 25 + -3u + 9u2 = 0 Solving for variable 'u'. Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 2.777777778 + -0.3333333333u + u2 = 0 Move the constant term to the right: Add '-2.777777778' to each side of the equation. 2.777777778 + -0.3333333333u + -2.777777778 + u2 = 0 + -2.777777778 Reorder the terms: 2.777777778 + -2.777777778 + -0.3333333333u + u2 = 0 + -2.777777778 Combine like terms: 2.777777778 + -2.777777778 = 0.000000000 0.000000000 + -0.3333333333u + u2 = 0 + -2.777777778 -0.3333333333u + u2 = 0 + -2.777777778 Combine like terms: 0 + -2.777777778 = -2.777777778 -0.3333333333u + u2 = -2.777777778 The u term is -0.3333333333u. Take half its coefficient (-0.1666666667). Square it (0.02777777779) and add it to both sides. Add '0.02777777779' to each side of the equation. -0.3333333333u + 0.02777777779 + u2 = -2.777777778 + 0.02777777779 Reorder the terms: 0.02777777779 + -0.3333333333u + u2 = -2.777777778 + 0.02777777779 Combine like terms: -2.777777778 + 0.02777777779 = -2.75000000021 0.02777777779 + -0.3333333333u + u2 = -2.75000000021 Factor a perfect square on the left side: (u + -0.1666666667)(u + -0.1666666667) = -2.75000000021 Can't calculate square root of the right side. The solution to this equation could not be determined.
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