6(n+8)n=5.6

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Solution for 6(n+8)n=5.6 equation:


Simplifying
6(n + 8) * n = 5.6

Reorder the terms:
6(8 + n) * n = 5.6

Reorder the terms for easier multiplication:
6n(8 + n) = 5.6
(8 * 6n + n * 6n) = 5.6
(48n + 6n2) = 5.6

Solving
48n + 6n2 = 5.6

Solving for variable 'n'.

Reorder the terms:
-5.6 + 48n + 6n2 = 5.6 + -5.6

Combine like terms: 5.6 + -5.6 = 0.0
-5.6 + 48n + 6n2 = 0.0

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

Divide each side by '6'.
-0.9333333333 + 8n + n2 = 0.0

Move the constant term to the right:

Add '0.9333333333' to each side of the equation.
-0.9333333333 + 8n + 0.9333333333 + n2 = 0.0 + 0.9333333333

Reorder the terms:
-0.9333333333 + 0.9333333333 + 8n + n2 = 0.0 + 0.9333333333

Combine like terms: -0.9333333333 + 0.9333333333 = 0.0000000000
0.0000000000 + 8n + n2 = 0.0 + 0.9333333333
8n + n2 = 0.0 + 0.9333333333

Combine like terms: 0.0 + 0.9333333333 = 0.9333333333
8n + n2 = 0.9333333333

The n term is 8n.  Take half its coefficient (4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
8n + 16 + n2 = 0.9333333333 + 16

Reorder the terms:
16 + 8n + n2 = 0.9333333333 + 16

Combine like terms: 0.9333333333 + 16 = 16.9333333333
16 + 8n + n2 = 16.9333333333

Factor a perfect square on the left side:
(n + 4)(n + 4) = 16.9333333333

Calculate the square root of the right side: 4.115013163

Break this problem into two subproblems by setting 
(n + 4) equal to 4.115013163 and -4.115013163.

Subproblem 1

n + 4 = 4.115013163 Simplifying n + 4 = 4.115013163 Reorder the terms: 4 + n = 4.115013163 Solving 4 + n = 4.115013163 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + n = 4.115013163 + -4 Combine like terms: 4 + -4 = 0 0 + n = 4.115013163 + -4 n = 4.115013163 + -4 Combine like terms: 4.115013163 + -4 = 0.115013163 n = 0.115013163 Simplifying n = 0.115013163

Subproblem 2

n + 4 = -4.115013163 Simplifying n + 4 = -4.115013163 Reorder the terms: 4 + n = -4.115013163 Solving 4 + n = -4.115013163 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + n = -4.115013163 + -4 Combine like terms: 4 + -4 = 0 0 + n = -4.115013163 + -4 n = -4.115013163 + -4 Combine like terms: -4.115013163 + -4 = -8.115013163 n = -8.115013163 Simplifying n = -8.115013163

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.115013163, -8.115013163}

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