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Simplifying y2 + -15y + 60 = 0 Reorder the terms: 60 + -15y + y2 = 0 Solving 60 + -15y + y2 = 0 Solving for variable 'y'. Begin completing the square. Move the constant term to the right: Add '-60' to each side of the equation. 60 + -15y + -60 + y2 = 0 + -60 Reorder the terms: 60 + -60 + -15y + y2 = 0 + -60 Combine like terms: 60 + -60 = 0 0 + -15y + y2 = 0 + -60 -15y + y2 = 0 + -60 Combine like terms: 0 + -60 = -60 -15y + y2 = -60 The y term is -15y. Take half its coefficient (-7.5). Square it (56.25) and add it to both sides. Add '56.25' to each side of the equation. -15y + 56.25 + y2 = -60 + 56.25 Reorder the terms: 56.25 + -15y + y2 = -60 + 56.25 Combine like terms: -60 + 56.25 = -3.75 56.25 + -15y + y2 = -3.75 Factor a perfect square on the left side: (y + -7.5)(y + -7.5) = -3.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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