12k(k+4)=60

Solution for 12k(k+4)=60 equation:

Simplifying
12k(k + 4) = 60

Reorder the terms:
12k(4 + k) = 60
(4 * 12k + k * 12k) = 60
(48k + 12k2) = 60

Solving
48k + 12k2 = 60

Solving for variable 'k'.

Reorder the terms:
-60 + 48k + 12k2 = 60 + -60

Combine like terms: 60 + -60 = 0
-60 + 48k + 12k2 = 0

Factor out the Greatest Common Factor (GCF), '12'.
12(-5 + 4k + k2) = 0

Factor a trinomial.
12((-5 + -1k)(1 + -1k)) = 0

Ignore the factor 12.
Subproblem 1
Set the factor '(-5 + -1k)' equal to zero and attempt to solve:

Simplifying
-5 + -1k = 0

Solving
-5 + -1k = 0

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

Add '5' to each side of the equation.
-5 + 5 + -1k = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -1k = 0 + 5
-1k = 0 + 5

Combine like terms: 0 + 5 = 5
-1k = 5

Divide each side by '-1'.
k = -5

Simplifying
k = -5
Subproblem 2
Set the factor '(1 + -1k)' equal to zero and attempt to solve:

Simplifying
1 + -1k = 0

Solving
1 + -1k = 0

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

Add '-1' to each side of the equation.
1 + -1 + -1k = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1k = 0 + -1
-1k = 0 + -1

Combine like terms: 0 + -1 = -1
-1k = -1

Divide each side by '-1'.
k = 1

Simplifying
k = 1
Solution
k = {-5, 1}