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Simplifying 9y2 + -22y + 85 = 0 Reorder the terms: 85 + -22y + 9y2 = 0 Solving 85 + -22y + 9y2 = 0 Solving for variable 'y'. Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 9.444444444 + -2.444444444y + y2 = 0 Move the constant term to the right: Add '-9.444444444' to each side of the equation. 9.444444444 + -2.444444444y + -9.444444444 + y2 = 0 + -9.444444444 Reorder the terms: 9.444444444 + -9.444444444 + -2.444444444y + y2 = 0 + -9.444444444 Combine like terms: 9.444444444 + -9.444444444 = 0.000000000 0.000000000 + -2.444444444y + y2 = 0 + -9.444444444 -2.444444444y + y2 = 0 + -9.444444444 Combine like terms: 0 + -9.444444444 = -9.444444444 -2.444444444y + y2 = -9.444444444 The y term is -2.444444444y. Take half its coefficient (-1.222222222). Square it (1.493827160) and add it to both sides. Add '1.493827160' to each side of the equation. -2.444444444y + 1.493827160 + y2 = -9.444444444 + 1.493827160 Reorder the terms: 1.493827160 + -2.444444444y + y2 = -9.444444444 + 1.493827160 Combine like terms: -9.444444444 + 1.493827160 = -7.950617284 1.493827160 + -2.444444444y + y2 = -7.950617284 Factor a perfect square on the left side: (y + -1.222222222)(y + -1.222222222) = -7.950617284 Can't calculate square root of the right side. The solution to this equation could not be determined.
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