20k^2-11k-3=0

Solution for 20k^2-11k-3=0 equation:

Simplifying
20k2 + -11k + -3 = 0

Reorder the terms:
-3 + -11k + 20k2 = 0

Solving
-3 + -11k + 20k2 = 0

Solving for variable 'k'.

Factor a trinomial.
(-1 + -5k)(3 + -4k) = 0

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

Simplifying
-1 + -5k = 0

Solving
-1 + -5k = 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 + -5k = 0 + 1

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

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

Divide each side by '-5'.
k = -0.2

Simplifying
k = -0.2
Subproblem 2
Set the factor '(3 + -4k)' equal to zero and attempt to solve:

Simplifying
3 + -4k = 0

Solving
3 + -4k = 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 + -4k = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -4k = 0 + -3
-4k = 0 + -3

Combine like terms: 0 + -3 = -3
-4k = -3

Divide each side by '-4'.
k = 0.75

Simplifying
k = 0.75
Solution
k = {-0.2, 0.75}