-6c+c^2+17=13

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Solution for -6c+c^2+17=13 equation:


Simplifying
-6c + c2 + 17 = 13

Reorder the terms:
17 + -6c + c2 = 13

Solving
17 + -6c + c2 = 13

Solving for variable 'c'.

Reorder the terms:
17 + -13 + -6c + c2 = 13 + -13

Combine like terms: 17 + -13 = 4
4 + -6c + c2 = 13 + -13

Combine like terms: 13 + -13 = 0
4 + -6c + c2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -6c + -4 + c2 = 0 + -4

Reorder the terms:
4 + -4 + -6c + c2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -6c + c2 = 0 + -4
-6c + c2 = 0 + -4

Combine like terms: 0 + -4 = -4
-6c + c2 = -4

The c term is -6c.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6c + 9 + c2 = -4 + 9

Reorder the terms:
9 + -6c + c2 = -4 + 9

Combine like terms: -4 + 9 = 5
9 + -6c + c2 = 5

Factor a perfect square on the left side:
(c + -3)(c + -3) = 5

Calculate the square root of the right side: 2.236067978

Break this problem into two subproblems by setting 
(c + -3) equal to 2.236067978 and -2.236067978.

Subproblem 1

c + -3 = 2.236067978 Simplifying c + -3 = 2.236067978 Reorder the terms: -3 + c = 2.236067978 Solving -3 + c = 2.236067978 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + c = 2.236067978 + 3 Combine like terms: -3 + 3 = 0 0 + c = 2.236067978 + 3 c = 2.236067978 + 3 Combine like terms: 2.236067978 + 3 = 5.236067978 c = 5.236067978 Simplifying c = 5.236067978

Subproblem 2

c + -3 = -2.236067978 Simplifying c + -3 = -2.236067978 Reorder the terms: -3 + c = -2.236067978 Solving -3 + c = -2.236067978 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + c = -2.236067978 + 3 Combine like terms: -3 + 3 = 0 0 + c = -2.236067978 + 3 c = -2.236067978 + 3 Combine like terms: -2.236067978 + 3 = 0.763932022 c = 0.763932022 Simplifying c = 0.763932022

Solution

The solution to the problem is based on the solutions from the subproblems. c = {5.236067978, 0.763932022}

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