-4b(1-9b-2b)=

Solution for -4b(1-9b-2b)= equation:

Simplifying
-4b(1 + -9b + -2b) = 0

Combine like terms: -9b + -2b = -11b
-4b(1 + -11b) = 0
(1 * -4b + -11b * -4b) = 0
(-4b + 44b2) = 0

Solving
-4b + 44b2 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '4b'.
4b(-1 + 11b) = 0

Ignore the factor 4.
Subproblem 1
Set the factor 'b' equal to zero and attempt to solve:

Simplifying
b = 0

Solving
b = 0

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

Simplifying
b = 0
Subproblem 2
Set the factor '(-1 + 11b)' equal to zero and attempt to solve:

Simplifying
-1 + 11b = 0

Solving
-1 + 11b = 0

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

Add '1' to each side of the equation.
-1 + 1 + 11b = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 11b = 0 + 1
11b = 0 + 1

Combine like terms: 0 + 1 = 1
11b = 1

Divide each side by '11'.
b = 0.09090909091

Simplifying
b = 0.09090909091
Solution
b = {0, 0.09090909091}