-4k^2-9k-3k=-3-5k^2

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Solution for -4k^2-9k-3k=-3-5k^2 equation:


Simplifying
-4k2 + -9k + -3k = -3 + -5k2

Reorder the terms:
-9k + -3k + -4k2 = -3 + -5k2

Combine like terms: -9k + -3k = -12k
-12k + -4k2 = -3 + -5k2

Solving
-12k + -4k2 = -3 + -5k2

Solving for variable 'k'.

Reorder the terms:
3 + -12k + -4k2 + 5k2 = -3 + -5k2 + 3 + 5k2

Combine like terms: -4k2 + 5k2 = 1k2
3 + -12k + 1k2 = -3 + -5k2 + 3 + 5k2

Reorder the terms:
3 + -12k + 1k2 = -3 + 3 + -5k2 + 5k2

Combine like terms: -3 + 3 = 0
3 + -12k + 1k2 = 0 + -5k2 + 5k2
3 + -12k + 1k2 = -5k2 + 5k2

Combine like terms: -5k2 + 5k2 = 0
3 + -12k + 1k2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -12k + -3 + k2 = 0 + -3

Reorder the terms:
3 + -3 + -12k + k2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -12k + k2 = 0 + -3
-12k + k2 = 0 + -3

Combine like terms: 0 + -3 = -3
-12k + k2 = -3

The k term is -12k.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12k + 36 + k2 = -3 + 36

Reorder the terms:
36 + -12k + k2 = -3 + 36

Combine like terms: -3 + 36 = 33
36 + -12k + k2 = 33

Factor a perfect square on the left side:
(k + -6)(k + -6) = 33

Calculate the square root of the right side: 5.744562647

Break this problem into two subproblems by setting 
(k + -6) equal to 5.744562647 and -5.744562647.

Subproblem 1

k + -6 = 5.744562647 Simplifying k + -6 = 5.744562647 Reorder the terms: -6 + k = 5.744562647 Solving -6 + k = 5.744562647 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + k = 5.744562647 + 6 Combine like terms: -6 + 6 = 0 0 + k = 5.744562647 + 6 k = 5.744562647 + 6 Combine like terms: 5.744562647 + 6 = 11.744562647 k = 11.744562647 Simplifying k = 11.744562647

Subproblem 2

k + -6 = -5.744562647 Simplifying k + -6 = -5.744562647 Reorder the terms: -6 + k = -5.744562647 Solving -6 + k = -5.744562647 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + k = -5.744562647 + 6 Combine like terms: -6 + 6 = 0 0 + k = -5.744562647 + 6 k = -5.744562647 + 6 Combine like terms: -5.744562647 + 6 = 0.255437353 k = 0.255437353 Simplifying k = 0.255437353

Solution

The solution to the problem is based on the solutions from the subproblems. k = {11.744562647, 0.255437353}

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