k^2-2k-52=0

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Solution for k^2-2k-52=0 equation:


Simplifying
k2 + -2k + -52 = 0

Reorder the terms:
-52 + -2k + k2 = 0

Solving
-52 + -2k + k2 = 0

Solving for variable 'k'.

Begin completing the square.

Move the constant term to the right:

Add '52' to each side of the equation.
-52 + -2k + 52 + k2 = 0 + 52

Reorder the terms:
-52 + 52 + -2k + k2 = 0 + 52

Combine like terms: -52 + 52 = 0
0 + -2k + k2 = 0 + 52
-2k + k2 = 0 + 52

Combine like terms: 0 + 52 = 52
-2k + k2 = 52

The k term is -2k.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2k + 1 + k2 = 52 + 1

Reorder the terms:
1 + -2k + k2 = 52 + 1

Combine like terms: 52 + 1 = 53
1 + -2k + k2 = 53

Factor a perfect square on the left side:
(k + -1)(k + -1) = 53

Calculate the square root of the right side: 7.280109889

Break this problem into two subproblems by setting 
(k + -1) equal to 7.280109889 and -7.280109889.

Subproblem 1

k + -1 = 7.280109889 Simplifying k + -1 = 7.280109889 Reorder the terms: -1 + k = 7.280109889 Solving -1 + k = 7.280109889 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + k = 7.280109889 + 1 Combine like terms: -1 + 1 = 0 0 + k = 7.280109889 + 1 k = 7.280109889 + 1 Combine like terms: 7.280109889 + 1 = 8.280109889 k = 8.280109889 Simplifying k = 8.280109889

Subproblem 2

k + -1 = -7.280109889 Simplifying k + -1 = -7.280109889 Reorder the terms: -1 + k = -7.280109889 Solving -1 + k = -7.280109889 Solving for variable 'k'. Move all terms containing k to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + k = -7.280109889 + 1 Combine like terms: -1 + 1 = 0 0 + k = -7.280109889 + 1 k = -7.280109889 + 1 Combine like terms: -7.280109889 + 1 = -6.280109889 k = -6.280109889 Simplifying k = -6.280109889

Solution

The solution to the problem is based on the solutions from the subproblems. k = {8.280109889, -6.280109889}

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