m^2-4m=0

Solution for m^2-4m=0 equation:

Simplifying
m2 + -4m = 0

Reorder the terms:
-4m + m2 = 0

Solving
-4m + m2 = 0

Solving for variable 'm'.

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

Subproblem 1
Set the factor 'm' equal to zero and attempt to solve:

Simplifying
m = 0

Solving
m = 0

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

Simplifying
m = 0
Subproblem 2
Set the factor '(-4 + m)' equal to zero and attempt to solve:

Simplifying
-4 + m = 0

Solving
-4 + m = 0

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

Add '4' to each side of the equation.
-4 + 4 + m = 0 + 4

Combine like terms: -4 + 4 = 0
0 + m = 0 + 4
m = 0 + 4

Combine like terms: 0 + 4 = 4
m = 4

Simplifying
m = 4
Solution
m = {0, 4}