u^2=15u

Solution for u^2=15u equation:

Simplifying
u2 = 15u

Solving
u2 = 15u

Solving for variable 'u'.

Reorder the terms:
-15u + u2 = 15u + -15u

Combine like terms: 15u + -15u = 0
-15u + u2 = 0

Factor out the Greatest Common Factor (GCF), 'u'.
u(-15 + u) = 0

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

Simplifying
u = 0

Solving
u = 0

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

Simplifying
u = 0
Subproblem 2
Set the factor '(-15 + u)' equal to zero and attempt to solve:

Simplifying
-15 + u = 0

Solving
-15 + u = 0

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

Add '15' to each side of the equation.
-15 + 15 + u = 0 + 15

Combine like terms: -15 + 15 = 0
0 + u = 0 + 15
u = 0 + 15

Combine like terms: 0 + 15 = 15
u = 15

Simplifying
u = 15
Solution
u = {0, 15}