2(8n+2)-n(-8-3n)=

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Solution for 2(8n+2)-n(-8-3n)= equation:


Simplifying
2(8n + 2) + -1n(-8 + -3n) = 0

Reorder the terms:
2(2 + 8n) + -1n(-8 + -3n) = 0
(2 * 2 + 8n * 2) + -1n(-8 + -3n) = 0
(4 + 16n) + -1n(-8 + -3n) = 0
4 + 16n + (-8 * -1n + -3n * -1n) = 0
4 + 16n + (8n + 3n2) = 0

Combine like terms: 16n + 8n = 24n
4 + 24n + 3n2 = 0

Solving
4 + 24n + 3n2 = 0

Solving for variable 'n'.

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

Divide each side by '3'.
1.333333333 + 8n + n2 = 0

Move the constant term to the right:

Add '-1.333333333' to each side of the equation.
1.333333333 + 8n + -1.333333333 + n2 = 0 + -1.333333333

Reorder the terms:
1.333333333 + -1.333333333 + 8n + n2 = 0 + -1.333333333

Combine like terms: 1.333333333 + -1.333333333 = 0.000000000
0.000000000 + 8n + n2 = 0 + -1.333333333
8n + n2 = 0 + -1.333333333

Combine like terms: 0 + -1.333333333 = -1.333333333
8n + n2 = -1.333333333

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 = -1.333333333 + 16

Reorder the terms:
16 + 8n + n2 = -1.333333333 + 16

Combine like terms: -1.333333333 + 16 = 14.666666667
16 + 8n + n2 = 14.666666667

Factor a perfect square on the left side:
(n + 4)(n + 4) = 14.666666667

Calculate the square root of the right side: 3.829708431

Break this problem into two subproblems by setting 
(n + 4) equal to 3.829708431 and -3.829708431.

Subproblem 1

n + 4 = 3.829708431 Simplifying n + 4 = 3.829708431 Reorder the terms: 4 + n = 3.829708431 Solving 4 + n = 3.829708431 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 = 3.829708431 + -4 Combine like terms: 4 + -4 = 0 0 + n = 3.829708431 + -4 n = 3.829708431 + -4 Combine like terms: 3.829708431 + -4 = -0.170291569 n = -0.170291569 Simplifying n = -0.170291569

Subproblem 2

n + 4 = -3.829708431 Simplifying n + 4 = -3.829708431 Reorder the terms: 4 + n = -3.829708431 Solving 4 + n = -3.829708431 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 = -3.829708431 + -4 Combine like terms: 4 + -4 = 0 0 + n = -3.829708431 + -4 n = -3.829708431 + -4 Combine like terms: -3.829708431 + -4 = -7.829708431 n = -7.829708431 Simplifying n = -7.829708431

Solution

The solution to the problem is based on the solutions from the subproblems. n = {-0.170291569, -7.829708431}

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