3b^2+4b=-8

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


Simplifying
3b2 + 4b = -8

Reorder the terms:
4b + 3b2 = -8

Solving
4b + 3b2 = -8

Solving for variable 'b'.

Reorder the terms:
8 + 4b + 3b2 = -8 + 8

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

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

Divide each side by '3'.
2.666666667 + 1.333333333b + b2 = 0

Move the constant term to the right:

Add '-2.666666667' to each side of the equation.
2.666666667 + 1.333333333b + -2.666666667 + b2 = 0 + -2.666666667

Reorder the terms:
2.666666667 + -2.666666667 + 1.333333333b + b2 = 0 + -2.666666667

Combine like terms: 2.666666667 + -2.666666667 = 0.000000000
0.000000000 + 1.333333333b + b2 = 0 + -2.666666667
1.333333333b + b2 = 0 + -2.666666667

Combine like terms: 0 + -2.666666667 = -2.666666667
1.333333333b + b2 = -2.666666667

The b term is 1.333333333b.  Take half its coefficient (0.6666666665).
Square it (0.4444444442) and add it to both sides.

Add '0.4444444442' to each side of the equation.
1.333333333b + 0.4444444442 + b2 = -2.666666667 + 0.4444444442

Reorder the terms:
0.4444444442 + 1.333333333b + b2 = -2.666666667 + 0.4444444442

Combine like terms: -2.666666667 + 0.4444444442 = -2.2222222228
0.4444444442 + 1.333333333b + b2 = -2.2222222228

Factor a perfect square on the left side:
(b + 0.6666666665)(b + 0.6666666665) = -2.2222222228

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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