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Simplifying y2 + 8y + 16 = -25 Reorder the terms: 16 + 8y + y2 = -25 Solving 16 + 8y + y2 = -25 Solving for variable 'y'. Reorder the terms: 16 + 25 + 8y + y2 = -25 + 25 Combine like terms: 16 + 25 = 41 41 + 8y + y2 = -25 + 25 Combine like terms: -25 + 25 = 0 41 + 8y + y2 = 0 Begin completing the square. Move the constant term to the right: Add '-41' to each side of the equation. 41 + 8y + -41 + y2 = 0 + -41 Reorder the terms: 41 + -41 + 8y + y2 = 0 + -41 Combine like terms: 41 + -41 = 0 0 + 8y + y2 = 0 + -41 8y + y2 = 0 + -41 Combine like terms: 0 + -41 = -41 8y + y2 = -41 The y term is 8y. Take half its coefficient (4). Square it (16) and add it to both sides. Add '16' to each side of the equation. 8y + 16 + y2 = -41 + 16 Reorder the terms: 16 + 8y + y2 = -41 + 16 Combine like terms: -41 + 16 = -25 16 + 8y + y2 = -25 Factor a perfect square on the left side: (y + 4)(y + 4) = -25 Can't calculate square root of the right side. The solution to this equation could not be determined.
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