-4b(5b^3+3b^2)=

Solution for -4b(5b^3+3b^2)= equation:

Simplifying
-4b(5b3 + 3b2) = 0

Reorder the terms:
-4b(3b2 + 5b3) = 0
(3b2 * -4b + 5b3 * -4b) = 0
(-12b3 + -20b4) = 0

Solving
-12b3 + -20b4 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '-4b3'.
-4b3(3 + 5b) = 0

Ignore the factor -4.
Subproblem 1
Set the factor 'b3' equal to zero and attempt to solve:

Simplifying
b3 = 0

Solving
b3 = 0

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

Simplifying
b3 = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Subproblem 2
Set the factor '(3 + 5b)' equal to zero and attempt to solve:

Simplifying
3 + 5b = 0

Solving
3 + 5b = 0

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

Add '-3' to each side of the equation.
3 + -3 + 5b = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 5b = 0 + -3
5b = 0 + -3

Combine like terms: 0 + -3 = -3
5b = -3

Divide each side by '5'.
b = -0.6

Simplifying
b = -0.6
Solution
b = {-0.6}