10k^2-20k-22=8

Solution for 10k^2-20k-22=8 equation:

Simplifying
10k2 + -20k + -22 = 8

Reorder the terms:
-22 + -20k + 10k2 = 8

Solving
-22 + -20k + 10k2 = 8

Solving for variable 'k'.

Reorder the terms:
-22 + -8 + -20k + 10k2 = 8 + -8

Combine like terms: -22 + -8 = -30
-30 + -20k + 10k2 = 8 + -8

Combine like terms: 8 + -8 = 0
-30 + -20k + 10k2 = 0

Factor out the Greatest Common Factor (GCF), '10'.
10(-3 + -2k + k2) = 0

Factor a trinomial.
10((-1 + -1k)(3 + -1k)) = 0

Ignore the factor 10.
Subproblem 1
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
Subproblem 2
Set the factor '(3 + -1k)' equal to zero and attempt to solve:

Simplifying
3 + -1k = 0

Solving
3 + -1k = 0

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

Add '-3' to each side of the equation.
3 + -3 + -1k = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1k = 0 + -3
-1k = 0 + -3

Combine like terms: 0 + -3 = -3
-1k = -3

Divide each side by '-1'.
k = 3

Simplifying
k = 3
Solution
k = {-1, 3}