5k^2-6k-34=0

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Solution for 5k^2-6k-34=0 equation:


Simplifying
5k2 + -6k + -34 = 0

Reorder the terms:
-34 + -6k + 5k2 = 0

Solving
-34 + -6k + 5k2 = 0

Solving for variable 'k'.

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

Divide each side by '5'.
-6.8 + -1.2k + k2 = 0

Move the constant term to the right:

Add '6.8' to each side of the equation.
-6.8 + -1.2k + 6.8 + k2 = 0 + 6.8

Reorder the terms:
-6.8 + 6.8 + -1.2k + k2 = 0 + 6.8

Combine like terms: -6.8 + 6.8 = 0.0
0.0 + -1.2k + k2 = 0 + 6.8
-1.2k + k2 = 0 + 6.8

Combine like terms: 0 + 6.8 = 6.8
-1.2k + k2 = 6.8

The k term is -1.2k.  Take half its coefficient (-0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
-1.2k + 0.36 + k2 = 6.8 + 0.36

Reorder the terms:
0.36 + -1.2k + k2 = 6.8 + 0.36

Combine like terms: 6.8 + 0.36 = 7.16
0.36 + -1.2k + k2 = 7.16

Factor a perfect square on the left side:
(k + -0.6)(k + -0.6) = 7.16

Calculate the square root of the right side: 2.675817632

Break this problem into two subproblems by setting 
(k + -0.6) equal to 2.675817632 and -2.675817632.

Subproblem 1

k + -0.6 = 2.675817632 Simplifying k + -0.6 = 2.675817632 Reorder the terms: -0.6 + k = 2.675817632 Solving -0.6 + k = 2.675817632 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '0.6' to each side of the equation. -0.6 + 0.6 + k = 2.675817632 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + k = 2.675817632 + 0.6 k = 2.675817632 + 0.6 Combine like terms: 2.675817632 + 0.6 = 3.275817632 k = 3.275817632 Simplifying k = 3.275817632

Subproblem 2

k + -0.6 = -2.675817632 Simplifying k + -0.6 = -2.675817632 Reorder the terms: -0.6 + k = -2.675817632 Solving -0.6 + k = -2.675817632 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '0.6' to each side of the equation. -0.6 + 0.6 + k = -2.675817632 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + k = -2.675817632 + 0.6 k = -2.675817632 + 0.6 Combine like terms: -2.675817632 + 0.6 = -2.075817632 k = -2.075817632 Simplifying k = -2.075817632

Solution

The solution to the problem is based on the solutions from the subproblems. k = {3.275817632, -2.075817632}

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