9b^2+11b+4=0

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


Simplifying
9b2 + 11b + 4 = 0

Reorder the terms:
4 + 11b + 9b2 = 0

Solving
4 + 11b + 9b2 = 0

Solving for variable 'b'.

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

Divide each side by '9'.
0.4444444444 + 1.222222222b + b2 = 0

Move the constant term to the right:

Add '-0.4444444444' to each side of the equation.
0.4444444444 + 1.222222222b + -0.4444444444 + b2 = 0 + -0.4444444444

Reorder the terms:
0.4444444444 + -0.4444444444 + 1.222222222b + b2 = 0 + -0.4444444444

Combine like terms: 0.4444444444 + -0.4444444444 = 0.0000000000
0.0000000000 + 1.222222222b + b2 = 0 + -0.4444444444
1.222222222b + b2 = 0 + -0.4444444444

Combine like terms: 0 + -0.4444444444 = -0.4444444444
1.222222222b + b2 = -0.4444444444

The b term is 1.222222222b.  Take half its coefficient (0.611111111).
Square it (0.3734567900) and add it to both sides.

Add '0.3734567900' to each side of the equation.
1.222222222b + 0.3734567900 + b2 = -0.4444444444 + 0.3734567900

Reorder the terms:
0.3734567900 + 1.222222222b + b2 = -0.4444444444 + 0.3734567900

Combine like terms: -0.4444444444 + 0.3734567900 = -0.0709876544
0.3734567900 + 1.222222222b + b2 = -0.0709876544

Factor a perfect square on the left side:
(b + 0.611111111)(b + 0.611111111) = -0.0709876544

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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