13k^2+2-2k-3=

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Solution for 13k^2+2-2k-3= equation:


Simplifying
13k2 + 2 + -2k + -3 = 0

Reorder the terms:
2 + -3 + -2k + 13k2 = 0

Combine like terms: 2 + -3 = -1
-1 + -2k + 13k2 = 0

Solving
-1 + -2k + 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'.
-0.07692307692 + -0.1538461538k + k2 = 0

Move the constant term to the right:

Add '0.07692307692' to each side of the equation.
-0.07692307692 + -0.1538461538k + 0.07692307692 + k2 = 0 + 0.07692307692

Reorder the terms:
-0.07692307692 + 0.07692307692 + -0.1538461538k + k2 = 0 + 0.07692307692

Combine like terms: -0.07692307692 + 0.07692307692 = 0.00000000000
0.00000000000 + -0.1538461538k + k2 = 0 + 0.07692307692
-0.1538461538k + k2 = 0 + 0.07692307692

Combine like terms: 0 + 0.07692307692 = 0.07692307692
-0.1538461538k + k2 = 0.07692307692

The k term is -0.1538461538k.  Take half its coefficient (-0.0769230769).
Square it (0.005917159760) and add it to both sides.

Add '0.005917159760' to each side of the equation.
-0.1538461538k + 0.005917159760 + k2 = 0.07692307692 + 0.005917159760

Reorder the terms:
0.005917159760 + -0.1538461538k + k2 = 0.07692307692 + 0.005917159760

Combine like terms: 0.07692307692 + 0.005917159760 = 0.08284023668
0.005917159760 + -0.1538461538k + k2 = 0.08284023668

Factor a perfect square on the left side:
(k + -0.0769230769)(k + -0.0769230769) = 0.08284023668

Calculate the square root of the right side: 0.287819799

Break this problem into two subproblems by setting 
(k + -0.0769230769) equal to 0.287819799 and -0.287819799.

Subproblem 1

k + -0.0769230769 = 0.287819799 Simplifying k + -0.0769230769 = 0.287819799 Reorder the terms: -0.0769230769 + k = 0.287819799 Solving -0.0769230769 + k = 0.287819799 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '0.0769230769' to each side of the equation. -0.0769230769 + 0.0769230769 + k = 0.287819799 + 0.0769230769 Combine like terms: -0.0769230769 + 0.0769230769 = 0.0000000000 0.0000000000 + k = 0.287819799 + 0.0769230769 k = 0.287819799 + 0.0769230769 Combine like terms: 0.287819799 + 0.0769230769 = 0.3647428759 k = 0.3647428759 Simplifying k = 0.3647428759

Subproblem 2

k + -0.0769230769 = -0.287819799 Simplifying k + -0.0769230769 = -0.287819799 Reorder the terms: -0.0769230769 + k = -0.287819799 Solving -0.0769230769 + k = -0.287819799 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '0.0769230769' to each side of the equation. -0.0769230769 + 0.0769230769 + k = -0.287819799 + 0.0769230769 Combine like terms: -0.0769230769 + 0.0769230769 = 0.0000000000 0.0000000000 + k = -0.287819799 + 0.0769230769 k = -0.287819799 + 0.0769230769 Combine like terms: -0.287819799 + 0.0769230769 = -0.2108967221 k = -0.2108967221 Simplifying k = -0.2108967221

Solution

The solution to the problem is based on the solutions from the subproblems. k = {0.3647428759, -0.2108967221}

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