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Simplifying y2 + -12y + 321 = 0 Reorder the terms: 321 + -12y + y2 = 0 Solving 321 + -12y + y2 = 0 Solving for variable 'y'. Begin completing the square. Move the constant term to the right: Add '-321' to each side of the equation. 321 + -12y + -321 + y2 = 0 + -321 Reorder the terms: 321 + -321 + -12y + y2 = 0 + -321 Combine like terms: 321 + -321 = 0 0 + -12y + y2 = 0 + -321 -12y + y2 = 0 + -321 Combine like terms: 0 + -321 = -321 -12y + y2 = -321 The y term is -12y. Take half its coefficient (-6). Square it (36) and add it to both sides. Add '36' to each side of the equation. -12y + 36 + y2 = -321 + 36 Reorder the terms: 36 + -12y + y2 = -321 + 36 Combine like terms: -321 + 36 = -285 36 + -12y + y2 = -285 Factor a perfect square on the left side: (y + -6)(y + -6) = -285 Can't calculate square root of the right side. The solution to this equation could not be determined.
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