3k^2-4k^2-17k+6=0

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Solution for 3k^2-4k^2-17k+6=0 equation:


Simplifying
3k2 + -4k2 + -17k + 6 = 0

Reorder the terms:
6 + -17k + 3k2 + -4k2 = 0

Combine like terms: 3k2 + -4k2 = -1k2
6 + -17k + -1k2 = 0

Solving
6 + -17k + -1k2 = 0

Solving for variable 'k'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-6 + 17k + k2 = 0

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + 17k + 6 + k2 = 0 + 6

Reorder the terms:
-6 + 6 + 17k + k2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 17k + k2 = 0 + 6
17k + k2 = 0 + 6

Combine like terms: 0 + 6 = 6
17k + k2 = 6

The k term is 17k.  Take half its coefficient (8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
17k + 72.25 + k2 = 6 + 72.25

Reorder the terms:
72.25 + 17k + k2 = 6 + 72.25

Combine like terms: 6 + 72.25 = 78.25
72.25 + 17k + k2 = 78.25

Factor a perfect square on the left side:
(k + 8.5)(k + 8.5) = 78.25

Calculate the square root of the right side: 8.845903006

Break this problem into two subproblems by setting 
(k + 8.5) equal to 8.845903006 and -8.845903006.

Subproblem 1

k + 8.5 = 8.845903006 Simplifying k + 8.5 = 8.845903006 Reorder the terms: 8.5 + k = 8.845903006 Solving 8.5 + k = 8.845903006 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + k = 8.845903006 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + k = 8.845903006 + -8.5 k = 8.845903006 + -8.5 Combine like terms: 8.845903006 + -8.5 = 0.345903006 k = 0.345903006 Simplifying k = 0.345903006

Subproblem 2

k + 8.5 = -8.845903006 Simplifying k + 8.5 = -8.845903006 Reorder the terms: 8.5 + k = -8.845903006 Solving 8.5 + k = -8.845903006 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + k = -8.845903006 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + k = -8.845903006 + -8.5 k = -8.845903006 + -8.5 Combine like terms: -8.845903006 + -8.5 = -17.345903006 k = -17.345903006 Simplifying k = -17.345903006

Solution

The solution to the problem is based on the solutions from the subproblems. k = {0.345903006, -17.345903006}

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