11n^2+4n+9=0

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Solution for 11n^2+4n+9=0 equation:


Simplifying
11n2 + 4n + 9 = 0

Reorder the terms:
9 + 4n + 11n2 = 0

Solving
9 + 4n + 11n2 = 0

Solving for variable 'n'.

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

Divide each side by '11'.
0.8181818182 + 0.3636363636n + n2 = 0

Move the constant term to the right:

Add '-0.8181818182' to each side of the equation.
0.8181818182 + 0.3636363636n + -0.8181818182 + n2 = 0 + -0.8181818182

Reorder the terms:
0.8181818182 + -0.8181818182 + 0.3636363636n + n2 = 0 + -0.8181818182

Combine like terms: 0.8181818182 + -0.8181818182 = 0.0000000000
0.0000000000 + 0.3636363636n + n2 = 0 + -0.8181818182
0.3636363636n + n2 = 0 + -0.8181818182

Combine like terms: 0 + -0.8181818182 = -0.8181818182
0.3636363636n + n2 = -0.8181818182

The n term is 0.3636363636n.  Take half its coefficient (0.1818181818).
Square it (0.03305785123) and add it to both sides.

Add '0.03305785123' to each side of the equation.
0.3636363636n + 0.03305785123 + n2 = -0.8181818182 + 0.03305785123

Reorder the terms:
0.03305785123 + 0.3636363636n + n2 = -0.8181818182 + 0.03305785123

Combine like terms: -0.8181818182 + 0.03305785123 = -0.78512396697
0.03305785123 + 0.3636363636n + n2 = -0.78512396697

Factor a perfect square on the left side:
(n + 0.1818181818)(n + 0.1818181818) = -0.78512396697

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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