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Simplifying u2 + -7u + 22 = 0 Reorder the terms: 22 + -7u + u2 = 0 Solving 22 + -7u + u2 = 0 Solving for variable 'u'. Begin completing the square. Move the constant term to the right: Add '-22' to each side of the equation. 22 + -7u + -22 + u2 = 0 + -22 Reorder the terms: 22 + -22 + -7u + u2 = 0 + -22 Combine like terms: 22 + -22 = 0 0 + -7u + u2 = 0 + -22 -7u + u2 = 0 + -22 Combine like terms: 0 + -22 = -22 -7u + u2 = -22 The u term is -7u. Take half its coefficient (-3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. -7u + 12.25 + u2 = -22 + 12.25 Reorder the terms: 12.25 + -7u + u2 = -22 + 12.25 Combine like terms: -22 + 12.25 = -9.75 12.25 + -7u + u2 = -9.75 Factor a perfect square on the left side: (u + -3.5)(u + -3.5) = -9.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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