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Simplifying 2 + 2y + 9y2 = 0 Solving 2 + 2y + 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'. 0.2222222222 + 0.2222222222y + y2 = 0 Move the constant term to the right: Add '-0.2222222222' to each side of the equation. 0.2222222222 + 0.2222222222y + -0.2222222222 + y2 = 0 + -0.2222222222 Reorder the terms: 0.2222222222 + -0.2222222222 + 0.2222222222y + y2 = 0 + -0.2222222222 Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000 0.0000000000 + 0.2222222222y + y2 = 0 + -0.2222222222 0.2222222222y + y2 = 0 + -0.2222222222 Combine like terms: 0 + -0.2222222222 = -0.2222222222 0.2222222222y + y2 = -0.2222222222 The y term is 0.2222222222y. Take half its coefficient (0.1111111111). Square it (0.01234567901) and add it to both sides. Add '0.01234567901' to each side of the equation. 0.2222222222y + 0.01234567901 + y2 = -0.2222222222 + 0.01234567901 Reorder the terms: 0.01234567901 + 0.2222222222y + y2 = -0.2222222222 + 0.01234567901 Combine like terms: -0.2222222222 + 0.01234567901 = -0.20987654319 0.01234567901 + 0.2222222222y + y2 = -0.20987654319 Factor a perfect square on the left side: (y + 0.1111111111)(y + 0.1111111111) = -0.20987654319 Can't calculate square root of the right side. The solution to this equation could not be determined.
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