3b^2+9-6b-5+8b+4b^2=

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Solution for 3b^2+9-6b-5+8b+4b^2= equation: 


Simplifying
3b2 + 9 + -6b + -5 + 8b + 4b2 = 0

Reorder the terms:
9 + -5 + -6b + 8b + 3b2 + 4b2 = 0

Combine like terms: 9 + -5 = 4
4 + -6b + 8b + 3b2 + 4b2 = 0

Combine like terms: -6b + 8b = 2b
4 + 2b + 3b2 + 4b2 = 0

Combine like terms: 3b2 + 4b2 = 7b2
4 + 2b + 7b2 = 0

Solving
4 + 2b + 7b2 = 0

Solving for variable 'b'.

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

Divide each side by '7'.
0.5714285714 + 0.2857142857b + b2 = 0

Move the constant term to the right:

Add '-0.5714285714' to each side of the equation.
0.5714285714 + 0.2857142857b + -0.5714285714 + b2 = 0 + -0.5714285714

Reorder the terms:
0.5714285714 + -0.5714285714 + 0.2857142857b + b2 = 0 + -0.5714285714

Combine like terms: 0.5714285714 + -0.5714285714 = 0.0000000000
0.0000000000 + 0.2857142857b + b2 = 0 + -0.5714285714
0.2857142857b + b2 = 0 + -0.5714285714

Combine like terms: 0 + -0.5714285714 = -0.5714285714
0.2857142857b + b2 = -0.5714285714

The b term is 0.2857142857b.  Take half its coefficient (0.1428571429).
Square it (0.02040816328) and add it to both sides.

Add '0.02040816328' to each side of the equation.
0.2857142857b + 0.02040816328 + b2 = -0.5714285714 + 0.02040816328

Reorder the terms:
0.02040816328 + 0.2857142857b + b2 = -0.5714285714 + 0.02040816328

Combine like terms: -0.5714285714 + 0.02040816328 = -0.55102040812
0.02040816328 + 0.2857142857b + b2 = -0.55102040812

Factor a perfect square on the left side:
(b + 0.1428571429)(b + 0.1428571429) = -0.55102040812

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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