2+2y+9y^2=0

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Solution for 2+2y+9y^2=0 equation:


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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