11y^2+12y+9=0

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Solution for 11y^2+12y+9=0 equation:


Simplifying
11y2 + 12y + 9 = 0

Reorder the terms:
9 + 12y + 11y2 = 0

Solving
9 + 12y + 11y2 = 0

Solving for variable 'y'.

Begin completing the square.  Divide all terms by
11 the coefficient of the squared term: 

Divide each side by '11'.
0.8181818182 + 1.090909091y + y2 = 0

Move the constant term to the right:

Add '-0.8181818182' to each side of the equation.
0.8181818182 + 1.090909091y + -0.8181818182 + y2 = 0 + -0.8181818182

Reorder the terms:
0.8181818182 + -0.8181818182 + 1.090909091y + y2 = 0 + -0.8181818182

Combine like terms: 0.8181818182 + -0.8181818182 = 0.0000000000
0.0000000000 + 1.090909091y + y2 = 0 + -0.8181818182
1.090909091y + y2 = 0 + -0.8181818182

Combine like terms: 0 + -0.8181818182 = -0.8181818182
1.090909091y + y2 = -0.8181818182

The y term is 1.090909091y.  Take half its coefficient (0.5454545455).
Square it (0.2975206612) and add it to both sides.

Add '0.2975206612' to each side of the equation.
1.090909091y + 0.2975206612 + y2 = -0.8181818182 + 0.2975206612

Reorder the terms:
0.2975206612 + 1.090909091y + y2 = -0.8181818182 + 0.2975206612

Combine like terms: -0.8181818182 + 0.2975206612 = -0.520661157
0.2975206612 + 1.090909091y + y2 = -0.520661157

Factor a perfect square on the left side:
(y + 0.5454545455)(y + 0.5454545455) = -0.520661157

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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