(n+6)(n+6)=7

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Solution for (n+6)(n+6)=7 equation:


Simplifying
(n + 6)(n + 6) = 7

Reorder the terms:
(6 + n)(n + 6) = 7

Reorder the terms:
(6 + n)(6 + n) = 7

Multiply (6 + n) * (6 + n)
(6(6 + n) + n(6 + n)) = 7
((6 * 6 + n * 6) + n(6 + n)) = 7
((36 + 6n) + n(6 + n)) = 7
(36 + 6n + (6 * n + n * n)) = 7
(36 + 6n + (6n + n2)) = 7

Combine like terms: 6n + 6n = 12n
(36 + 12n + n2) = 7

Solving
36 + 12n + n2 = 7

Solving for variable 'n'.

Reorder the terms:
36 + -7 + 12n + n2 = 7 + -7

Combine like terms: 36 + -7 = 29
29 + 12n + n2 = 7 + -7

Combine like terms: 7 + -7 = 0
29 + 12n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-29' to each side of the equation.
29 + 12n + -29 + n2 = 0 + -29

Reorder the terms:
29 + -29 + 12n + n2 = 0 + -29

Combine like terms: 29 + -29 = 0
0 + 12n + n2 = 0 + -29
12n + n2 = 0 + -29

Combine like terms: 0 + -29 = -29
12n + n2 = -29

The n term is 12n.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12n + 36 + n2 = -29 + 36

Reorder the terms:
36 + 12n + n2 = -29 + 36

Combine like terms: -29 + 36 = 7
36 + 12n + n2 = 7

Factor a perfect square on the left side:
(n + 6)(n + 6) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(n + 6) equal to 2.645751311 and -2.645751311.

Subproblem 1

n + 6 = 2.645751311 Simplifying n + 6 = 2.645751311 Reorder the terms: 6 + n = 2.645751311 Solving 6 + n = 2.645751311 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + n = 2.645751311 + -6 Combine like terms: 6 + -6 = 0 0 + n = 2.645751311 + -6 n = 2.645751311 + -6 Combine like terms: 2.645751311 + -6 = -3.354248689 n = -3.354248689 Simplifying n = -3.354248689

Subproblem 2

n + 6 = -2.645751311 Simplifying n + 6 = -2.645751311 Reorder the terms: 6 + n = -2.645751311 Solving 6 + n = -2.645751311 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + n = -2.645751311 + -6 Combine like terms: 6 + -6 = 0 0 + n = -2.645751311 + -6 n = -2.645751311 + -6 Combine like terms: -2.645751311 + -6 = -8.645751311 n = -8.645751311 Simplifying n = -8.645751311

Solution

The solution to the problem is based on the solutions from the subproblems. n = {-3.354248689, -8.645751311}

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