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Simplifying Y2 + 7Y + 128395 = 0 Reorder the terms: 128395 + 7Y + Y2 = 0 Solving 128395 + 7Y + Y2 = 0 Solving for variable 'Y'. Begin completing the square. Move the constant term to the right: Add '-128395' to each side of the equation. 128395 + 7Y + -128395 + Y2 = 0 + -128395 Reorder the terms: 128395 + -128395 + 7Y + Y2 = 0 + -128395 Combine like terms: 128395 + -128395 = 0 0 + 7Y + Y2 = 0 + -128395 7Y + Y2 = 0 + -128395 Combine like terms: 0 + -128395 = -128395 7Y + Y2 = -128395 The Y term is 7Y. 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. 7Y + 12.25 + Y2 = -128395 + 12.25 Reorder the terms: 12.25 + 7Y + Y2 = -128395 + 12.25 Combine like terms: -128395 + 12.25 = -128382.75 12.25 + 7Y + Y2 = -128382.75 Factor a perfect square on the left side: (Y + 3.5)(Y + 3.5) = -128382.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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