3b^2+20b+4=-8

Solution for 3b^2+20b+4=-8 equation:

Simplifying
3b2 + 20b + 4 = -8

Reorder the terms:
4 + 20b + 3b2 = -8

Solving
4 + 20b + 3b2 = -8

Solving for variable 'b'.

Reorder the terms:
4 + 8 + 20b + 3b2 = -8 + 8

Combine like terms: 4 + 8 = 12
12 + 20b + 3b2 = -8 + 8

Combine like terms: -8 + 8 = 0
12 + 20b + 3b2 = 0

Factor a trinomial.
(6 + b)(2 + 3b) = 0

Subproblem 1
Set the factor '(6 + b)' equal to zero and attempt to solve:

Simplifying
6 + b = 0

Solving
6 + b = 0

Move all terms containing b to the left, all other terms to the right.

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

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

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

Simplifying
b = -6
Subproblem 2
Set the factor '(2 + 3b)' equal to zero and attempt to solve:

Simplifying
2 + 3b = 0

Solving
2 + 3b = 0

Move all terms containing b to the left, all other terms to the right.

Add '-2' to each side of the equation.
2 + -2 + 3b = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 3b = 0 + -2
3b = 0 + -2

Combine like terms: 0 + -2 = -2
3b = -2

Divide each side by '3'.
b = -0.6666666667

Simplifying
b = -0.6666666667
Solution
b = {-6, -0.6666666667}