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Simplifying -2y2 + 51y + -330 = 0 Reorder the terms: -330 + 51y + -2y2 = 0 Solving -330 + 51y + -2y2 = 0 Solving for variable 'y'. Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. 165 + -25.5y + y2 = 0 Move the constant term to the right: Add '-165' to each side of the equation. 165 + -25.5y + -165 + y2 = 0 + -165 Reorder the terms: 165 + -165 + -25.5y + y2 = 0 + -165 Combine like terms: 165 + -165 = 0 0 + -25.5y + y2 = 0 + -165 -25.5y + y2 = 0 + -165 Combine like terms: 0 + -165 = -165 -25.5y + y2 = -165 The y term is -25.5y. Take half its coefficient (-12.75). Square it (162.5625) and add it to both sides. Add '162.5625' to each side of the equation. -25.5y + 162.5625 + y2 = -165 + 162.5625 Reorder the terms: 162.5625 + -25.5y + y2 = -165 + 162.5625 Combine like terms: -165 + 162.5625 = -2.4375 162.5625 + -25.5y + y2 = -2.4375 Factor a perfect square on the left side: (y + -12.75)(y + -12.75) = -2.4375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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