5k^2-(-6k^2-2k+6)=

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Solution for 5k^2-(-6k^2-2k+6)= equation:


Simplifying
5k2 + -1(-6k2 + -2k + 6) = 0

Reorder the terms:
5k2 + -1(6 + -2k + -6k2) = 0
5k2 + (6 * -1 + -2k * -1 + -6k2 * -1) = 0
5k2 + (-6 + 2k + 6k2) = 0

Reorder the terms:
-6 + 2k + 5k2 + 6k2 = 0

Combine like terms: 5k2 + 6k2 = 11k2
-6 + 2k + 11k2 = 0

Solving
-6 + 2k + 11k2 = 0

Solving for variable 'k'.

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

Divide each side by '11'.
-0.5454545455 + 0.1818181818k + k2 = 0

Move the constant term to the right:

Add '0.5454545455' to each side of the equation.
-0.5454545455 + 0.1818181818k + 0.5454545455 + k2 = 0 + 0.5454545455

Reorder the terms:
-0.5454545455 + 0.5454545455 + 0.1818181818k + k2 = 0 + 0.5454545455

Combine like terms: -0.5454545455 + 0.5454545455 = 0.0000000000
0.0000000000 + 0.1818181818k + k2 = 0 + 0.5454545455
0.1818181818k + k2 = 0 + 0.5454545455

Combine like terms: 0 + 0.5454545455 = 0.5454545455
0.1818181818k + k2 = 0.5454545455

The k term is 0.1818181818k.  Take half its coefficient (0.0909090909).
Square it (0.008264462808) and add it to both sides.

Add '0.008264462808' to each side of the equation.
0.1818181818k + 0.008264462808 + k2 = 0.5454545455 + 0.008264462808

Reorder the terms:
0.008264462808 + 0.1818181818k + k2 = 0.5454545455 + 0.008264462808

Combine like terms: 0.5454545455 + 0.008264462808 = 0.553719008308
0.008264462808 + 0.1818181818k + k2 = 0.553719008308

Factor a perfect square on the left side:
(k + 0.0909090909)(k + 0.0909090909) = 0.553719008308

Calculate the square root of the right side: 0.744122979

Break this problem into two subproblems by setting 
(k + 0.0909090909) equal to 0.744122979 and -0.744122979.

Subproblem 1

k + 0.0909090909 = 0.744122979 Simplifying k + 0.0909090909 = 0.744122979 Reorder the terms: 0.0909090909 + k = 0.744122979 Solving 0.0909090909 + k = 0.744122979 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-0.0909090909' to each side of the equation. 0.0909090909 + -0.0909090909 + k = 0.744122979 + -0.0909090909 Combine like terms: 0.0909090909 + -0.0909090909 = 0.0000000000 0.0000000000 + k = 0.744122979 + -0.0909090909 k = 0.744122979 + -0.0909090909 Combine like terms: 0.744122979 + -0.0909090909 = 0.6532138881 k = 0.6532138881 Simplifying k = 0.6532138881

Subproblem 2

k + 0.0909090909 = -0.744122979 Simplifying k + 0.0909090909 = -0.744122979 Reorder the terms: 0.0909090909 + k = -0.744122979 Solving 0.0909090909 + k = -0.744122979 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '-0.0909090909' to each side of the equation. 0.0909090909 + -0.0909090909 + k = -0.744122979 + -0.0909090909 Combine like terms: 0.0909090909 + -0.0909090909 = 0.0000000000 0.0000000000 + k = -0.744122979 + -0.0909090909 k = -0.744122979 + -0.0909090909 Combine like terms: -0.744122979 + -0.0909090909 = -0.8350320699 k = -0.8350320699 Simplifying k = -0.8350320699

Solution

The solution to the problem is based on the solutions from the subproblems. k = {0.6532138881, -0.8350320699}

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