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Simplifying y2 + -8y + 1200 = 0 Reorder the terms: 1200 + -8y + y2 = 0 Solving 1200 + -8y + y2 = 0 Solving for variable 'y'. Begin completing the square. Move the constant term to the right: Add '-1200' to each side of the equation. 1200 + -8y + -1200 + y2 = 0 + -1200 Reorder the terms: 1200 + -1200 + -8y + y2 = 0 + -1200 Combine like terms: 1200 + -1200 = 0 0 + -8y + y2 = 0 + -1200 -8y + y2 = 0 + -1200 Combine like terms: 0 + -1200 = -1200 -8y + y2 = -1200 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 = -1200 + 16 Reorder the terms: 16 + -8y + y2 = -1200 + 16 Combine like terms: -1200 + 16 = -1184 16 + -8y + y2 = -1184 Factor a perfect square on the left side: (y + -4)(y + -4) = -1184 Can't calculate square root of the right side. The solution to this equation could not be determined.
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