11k^2-21k=0

Solution for 11k^2-21k=0 equation:

Simplifying
11k2 + -21k = 0

Reorder the terms:
-21k + 11k2 = 0

Solving
-21k + 11k2 = 0

Solving for variable 'k'.

Factor out the Greatest Common Factor (GCF), 'k'.
k(-21 + 11k) = 0

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

Simplifying
k = 0

Solving
k = 0

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

Simplifying
k = 0
Subproblem 2
Set the factor '(-21 + 11k)' equal to zero and attempt to solve:

Simplifying
-21 + 11k = 0

Solving
-21 + 11k = 0

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

Add '21' to each side of the equation.
-21 + 21 + 11k = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 11k = 0 + 21
11k = 0 + 21

Combine like terms: 0 + 21 = 21
11k = 21

Divide each side by '11'.
k = 1.909090909

Simplifying
k = 1.909090909
Solution
k = {0, 1.909090909}