r^2-26r=

Solution for r^2-26r= equation:

Simplifying
r2 + -26r = 0

Reorder the terms:
-26r + r2 = 0

Solving
-26r + r2 = 0

Solving for variable 'r'.

Factor out the Greatest Common Factor (GCF), 'r'.
r(-26 + r) = 0

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

Simplifying
r = 0

Solving
r = 0

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

Simplifying
r = 0
Subproblem 2
Set the factor '(-26 + r)' equal to zero and attempt to solve:

Simplifying
-26 + r = 0

Solving
-26 + r = 0

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

Add '26' to each side of the equation.
-26 + 26 + r = 0 + 26

Combine like terms: -26 + 26 = 0
0 + r = 0 + 26
r = 0 + 26

Combine like terms: 0 + 26 = 26
r = 26

Simplifying
r = 26
Solution
r = {0, 26}