5(c-6)c+11=24

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Solution for 5(c-6)c+11=24 equation:


Simplifying
5(c + -6) * c + 11 = 24

Reorder the terms:
5(-6 + c) * c + 11 = 24

Reorder the terms for easier multiplication:
5c(-6 + c) + 11 = 24
(-6 * 5c + c * 5c) + 11 = 24
(-30c + 5c2) + 11 = 24

Reorder the terms:
11 + -30c + 5c2 = 24

Solving
11 + -30c + 5c2 = 24

Solving for variable 'c'.

Reorder the terms:
11 + -24 + -30c + 5c2 = 24 + -24

Combine like terms: 11 + -24 = -13
-13 + -30c + 5c2 = 24 + -24

Combine like terms: 24 + -24 = 0
-13 + -30c + 5c2 = 0

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

Divide each side by '5'.
-2.6 + -6c + c2 = 0

Move the constant term to the right:

Add '2.6' to each side of the equation.
-2.6 + -6c + 2.6 + c2 = 0 + 2.6

Reorder the terms:
-2.6 + 2.6 + -6c + c2 = 0 + 2.6

Combine like terms: -2.6 + 2.6 = 0.0
0.0 + -6c + c2 = 0 + 2.6
-6c + c2 = 0 + 2.6

Combine like terms: 0 + 2.6 = 2.6
-6c + c2 = 2.6

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 = 2.6 + 9

Reorder the terms:
9 + -6c + c2 = 2.6 + 9

Combine like terms: 2.6 + 9 = 11.6
9 + -6c + c2 = 11.6

Factor a perfect square on the left side:
(c + -3)(c + -3) = 11.6

Calculate the square root of the right side: 3.405877273

Break this problem into two subproblems by setting 
(c + -3) equal to 3.405877273 and -3.405877273.

Subproblem 1

c + -3 = 3.405877273 Simplifying c + -3 = 3.405877273 Reorder the terms: -3 + c = 3.405877273 Solving -3 + c = 3.405877273 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 = 3.405877273 + 3 Combine like terms: -3 + 3 = 0 0 + c = 3.405877273 + 3 c = 3.405877273 + 3 Combine like terms: 3.405877273 + 3 = 6.405877273 c = 6.405877273 Simplifying c = 6.405877273

Subproblem 2

c + -3 = -3.405877273 Simplifying c + -3 = -3.405877273 Reorder the terms: -3 + c = -3.405877273 Solving -3 + c = -3.405877273 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 = -3.405877273 + 3 Combine like terms: -3 + 3 = 0 0 + c = -3.405877273 + 3 c = -3.405877273 + 3 Combine like terms: -3.405877273 + 3 = -0.405877273 c = -0.405877273 Simplifying c = -0.405877273

Solution

The solution to the problem is based on the solutions from the subproblems. c = {6.405877273, -0.405877273}

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