-c^2+24c-82=0

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Solution for -c^2+24c-82=0 equation:


Simplifying
-1c2 + 24c + -82 = 0

Reorder the terms:
-82 + 24c + -1c2 = 0

Solving
-82 + 24c + -1c2 = 0

Solving for variable 'c'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
82 + -24c + c2 = 0

Move the constant term to the right:

Add '-82' to each side of the equation.
82 + -24c + -82 + c2 = 0 + -82

Reorder the terms:
82 + -82 + -24c + c2 = 0 + -82

Combine like terms: 82 + -82 = 0
0 + -24c + c2 = 0 + -82
-24c + c2 = 0 + -82

Combine like terms: 0 + -82 = -82
-24c + c2 = -82

The c term is -24c.  Take half its coefficient (-12).
Square it (144) and add it to both sides.

Add '144' to each side of the equation.
-24c + 144 + c2 = -82 + 144

Reorder the terms:
144 + -24c + c2 = -82 + 144

Combine like terms: -82 + 144 = 62
144 + -24c + c2 = 62

Factor a perfect square on the left side:
(c + -12)(c + -12) = 62

Calculate the square root of the right side: 7.874007874

Break this problem into two subproblems by setting 
(c + -12) equal to 7.874007874 and -7.874007874.

Subproblem 1

c + -12 = 7.874007874 Simplifying c + -12 = 7.874007874 Reorder the terms: -12 + c = 7.874007874 Solving -12 + c = 7.874007874 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + c = 7.874007874 + 12 Combine like terms: -12 + 12 = 0 0 + c = 7.874007874 + 12 c = 7.874007874 + 12 Combine like terms: 7.874007874 + 12 = 19.874007874 c = 19.874007874 Simplifying c = 19.874007874

Subproblem 2

c + -12 = -7.874007874 Simplifying c + -12 = -7.874007874 Reorder the terms: -12 + c = -7.874007874 Solving -12 + c = -7.874007874 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + c = -7.874007874 + 12 Combine like terms: -12 + 12 = 0 0 + c = -7.874007874 + 12 c = -7.874007874 + 12 Combine like terms: -7.874007874 + 12 = 4.125992126 c = 4.125992126 Simplifying c = 4.125992126

Solution

The solution to the problem is based on the solutions from the subproblems. c = {19.874007874, 4.125992126}

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