2b(b+6)+19=0

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Solution for 2b(b+6)+19=0 equation:


Simplifying
2b(b + 6) + 19 = 0

Reorder the terms:
2b(6 + b) + 19 = 0
(6 * 2b + b * 2b) + 19 = 0
(12b + 2b2) + 19 = 0

Reorder the terms:
19 + 12b + 2b2 = 0

Solving
19 + 12b + 2b2 = 0

Solving for variable 'b'.

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

Divide each side by '2'.
9.5 + 6b + b2 = 0

Move the constant term to the right:

Add '-9.5' to each side of the equation.
9.5 + 6b + -9.5 + b2 = 0 + -9.5

Reorder the terms:
9.5 + -9.5 + 6b + b2 = 0 + -9.5

Combine like terms: 9.5 + -9.5 = 0.0
0.0 + 6b + b2 = 0 + -9.5
6b + b2 = 0 + -9.5

Combine like terms: 0 + -9.5 = -9.5
6b + b2 = -9.5

The b term is 6b.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6b + 9 + b2 = -9.5 + 9

Reorder the terms:
9 + 6b + b2 = -9.5 + 9

Combine like terms: -9.5 + 9 = -0.5
9 + 6b + b2 = -0.5

Factor a perfect square on the left side:
(b + 3)(b + 3) = -0.5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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