9b^2-12b-15b=0

Solution for 9b^2-12b-15b=0 equation:

Simplifying
9b2 + -12b + -15b = 0

Reorder the terms:
-12b + -15b + 9b2 = 0

Combine like terms: -12b + -15b = -27b
-27b + 9b2 = 0

Solving
-27b + 9b2 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '9b'.
9b(-3 + b) = 0

Ignore the factor 9.
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 '(-3 + b)' equal to zero and attempt to solve:

Simplifying
-3 + b = 0

Solving
-3 + b = 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 + b = 0 + 3

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

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

Simplifying
b = 3
Solution
b = {0, 3}