b^2=20b

Solution for b^2=20b equation:

Simplifying
b2 = 20b

Solving
b2 = 20b

Solving for variable 'b'.

Reorder the terms:
-20b + b2 = 20b + -20b

Combine like terms: 20b + -20b = 0
-20b + b2 = 0

Factor out the Greatest Common Factor (GCF), 'b'.
b(-20 + b) = 0

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 '(-20 + b)' equal to zero and attempt to solve:

Simplifying
-20 + b = 0

Solving
-20 + b = 0

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

Add '20' to each side of the equation.
-20 + 20 + b = 0 + 20

Combine like terms: -20 + 20 = 0
0 + b = 0 + 20
b = 0 + 20

Combine like terms: 0 + 20 = 20
b = 20

Simplifying
b = 20
Solution
b = {0, 20}