13k^2+36k-24=0

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Solution for 13k^2+36k-24=0 equation:


Simplifying
13k2 + 36k + -24 = 0

Reorder the terms:
-24 + 36k + 13k2 = 0

Solving
-24 + 36k + 13k2 = 0

Solving for variable 'k'.

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

Divide each side by '13'.
-1.846153846 + 2.769230769k + k2 = 0

Move the constant term to the right:

Add '1.846153846' to each side of the equation.
-1.846153846 + 2.769230769k + 1.846153846 + k2 = 0 + 1.846153846

Reorder the terms:
-1.846153846 + 1.846153846 + 2.769230769k + k2 = 0 + 1.846153846

Combine like terms: -1.846153846 + 1.846153846 = 0.000000000
0.000000000 + 2.769230769k + k2 = 0 + 1.846153846
2.769230769k + k2 = 0 + 1.846153846

Combine like terms: 0 + 1.846153846 = 1.846153846
2.769230769k + k2 = 1.846153846

The k term is 2.769230769k.  Take half its coefficient (1.384615385).
Square it (1.917159764) and add it to both sides.

Add '1.917159764' to each side of the equation.
2.769230769k + 1.917159764 + k2 = 1.846153846 + 1.917159764

Reorder the terms:
1.917159764 + 2.769230769k + k2 = 1.846153846 + 1.917159764

Combine like terms: 1.846153846 + 1.917159764 = 3.76331361
1.917159764 + 2.769230769k + k2 = 3.76331361

Factor a perfect square on the left side:
(k + 1.384615385)(k + 1.384615385) = 3.76331361

Calculate the square root of the right side: 1.939926187

Break this problem into two subproblems by setting 
(k + 1.384615385) equal to 1.939926187 and -1.939926187.

Subproblem 1

k + 1.384615385 = 1.939926187 Simplifying k + 1.384615385 = 1.939926187 Reorder the terms: 1.384615385 + k = 1.939926187 Solving 1.384615385 + k = 1.939926187 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-1.384615385' to each side of the equation. 1.384615385 + -1.384615385 + k = 1.939926187 + -1.384615385 Combine like terms: 1.384615385 + -1.384615385 = 0.000000000 0.000000000 + k = 1.939926187 + -1.384615385 k = 1.939926187 + -1.384615385 Combine like terms: 1.939926187 + -1.384615385 = 0.555310802 k = 0.555310802 Simplifying k = 0.555310802

Subproblem 2

k + 1.384615385 = -1.939926187 Simplifying k + 1.384615385 = -1.939926187 Reorder the terms: 1.384615385 + k = -1.939926187 Solving 1.384615385 + k = -1.939926187 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-1.384615385' to each side of the equation. 1.384615385 + -1.384615385 + k = -1.939926187 + -1.384615385 Combine like terms: 1.384615385 + -1.384615385 = 0.000000000 0.000000000 + k = -1.939926187 + -1.384615385 k = -1.939926187 + -1.384615385 Combine like terms: -1.939926187 + -1.384615385 = -3.324541572 k = -3.324541572 Simplifying k = -3.324541572

Solution

The solution to the problem is based on the solutions from the subproblems. k = {0.555310802, -3.324541572}

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