6k^2-5k-5=0

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Solution for 6k^2-5k-5=0 equation: 


Simplifying
6k2 + -5k + -5 = 0

Reorder the terms:
-5 + -5k + 6k2 = 0

Solving
-5 + -5k + 6k2 = 0

Solving for variable 'k'.

Begin completing the square.  Divide all terms by
6 the coefficient of the squared term: 

Divide each side by '6'.
-0.8333333333 + -0.8333333333k + k2 = 0

Move the constant term to the right:

Add '0.8333333333' to each side of the equation.
-0.8333333333 + -0.8333333333k + 0.8333333333 + k2 = 0 + 0.8333333333

Reorder the terms:
-0.8333333333 + 0.8333333333 + -0.8333333333k + k2 = 0 + 0.8333333333

Combine like terms: -0.8333333333 + 0.8333333333 = 0.0000000000
0.0000000000 + -0.8333333333k + k2 = 0 + 0.8333333333
-0.8333333333k + k2 = 0 + 0.8333333333

Combine like terms: 0 + 0.8333333333 = 0.8333333333
-0.8333333333k + k2 = 0.8333333333

The k term is -0.8333333333k.  Take half its coefficient (-0.4166666667).
Square it (0.1736111111) and add it to both sides.

Add '0.1736111111' to each side of the equation.
-0.8333333333k + 0.1736111111 + k2 = 0.8333333333 + 0.1736111111

Reorder the terms:
0.1736111111 + -0.8333333333k + k2 = 0.8333333333 + 0.1736111111

Combine like terms: 0.8333333333 + 0.1736111111 = 1.0069444444
0.1736111111 + -0.8333333333k + k2 = 1.0069444444

Factor a perfect square on the left side:
(k + -0.4166666667)(k + -0.4166666667) = 1.0069444444

Calculate the square root of the right side: 1.003466215

Break this problem into two subproblems by setting 
(k + -0.4166666667) equal to 1.003466215 and -1.003466215.


Subproblem 1
k + -0.4166666667 = 1.003466215

Simplifying
k + -0.4166666667 = 1.003466215

Reorder the terms:
-0.4166666667 + k = 1.003466215

Solving
-0.4166666667 + k = 1.003466215

Solving for variable 'k'.

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

Add '0.4166666667' to each side of the equation.
-0.4166666667 + 0.4166666667 + k = 1.003466215 + 0.4166666667

Combine like terms: -0.4166666667 + 0.4166666667 = 0.0000000000
0.0000000000 + k = 1.003466215 + 0.4166666667
k = 1.003466215 + 0.4166666667

Combine like terms: 1.003466215 + 0.4166666667 = 1.4201328817
k = 1.4201328817

Simplifying
k = 1.4201328817


Subproblem 2
k + -0.4166666667 = -1.003466215

Simplifying
k + -0.4166666667 = -1.003466215

Reorder the terms:
-0.4166666667 + k = -1.003466215

Solving
-0.4166666667 + k = -1.003466215

Solving for variable 'k'.

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

Add '0.4166666667' to each side of the equation.
-0.4166666667 + 0.4166666667 + k = -1.003466215 + 0.4166666667

Combine like terms: -0.4166666667 + 0.4166666667 = 0.0000000000
0.0000000000 + k = -1.003466215 + 0.4166666667
k = -1.003466215 + 0.4166666667

Combine like terms: -1.003466215 + 0.4166666667 = -0.5867995483
k = -0.5867995483

Simplifying
k = -0.5867995483


Solution
The solution to the problem is based on the solutions
from the subproblems.
k = {1.4201328817, -0.5867995483}

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