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Simplifying Y2 + 4Y + 0 + 28 = 0 Reorder the terms: 0 + 28 + 4Y + Y2 = 0 Combine like terms: 0 + 28 = 28 28 + 4Y + Y2 = 0 Solving 28 + 4Y + Y2 = 0 Solving for variable 'Y'. Begin completing the square. Move the constant term to the right: Add '-28' to each side of the equation. 28 + 4Y + -28 + Y2 = 0 + -28 Reorder the terms: 28 + -28 + 4Y + Y2 = 0 + -28 Combine like terms: 28 + -28 = 0 0 + 4Y + Y2 = 0 + -28 4Y + Y2 = 0 + -28 Combine like terms: 0 + -28 = -28 4Y + Y2 = -28 The Y term is 4Y. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4Y + 4 + Y2 = -28 + 4 Reorder the terms: 4 + 4Y + Y2 = -28 + 4 Combine like terms: -28 + 4 = -24 4 + 4Y + Y2 = -24 Factor a perfect square on the left side: (Y + 2)(Y + 2) = -24 Can't calculate square root of the right side. The solution to this equation could not be determined.
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