n^2=-36n+15

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Solution for n^2=-36n+15 equation:


Simplifying
n2 = -36n + 15

Reorder the terms:
n2 = 15 + -36n

Solving
n2 = 15 + -36n

Solving for variable 'n'.

Reorder the terms:
-15 + 36n + n2 = 15 + -36n + -15 + 36n

Reorder the terms:
-15 + 36n + n2 = 15 + -15 + -36n + 36n

Combine like terms: 15 + -15 = 0
-15 + 36n + n2 = 0 + -36n + 36n
-15 + 36n + n2 = -36n + 36n

Combine like terms: -36n + 36n = 0
-15 + 36n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '15' to each side of the equation.
-15 + 36n + 15 + n2 = 0 + 15

Reorder the terms:
-15 + 15 + 36n + n2 = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 36n + n2 = 0 + 15
36n + n2 = 0 + 15

Combine like terms: 0 + 15 = 15
36n + n2 = 15

The n term is 36n.  Take half its coefficient (18).
Square it (324) and add it to both sides.

Add '324' to each side of the equation.
36n + 324 + n2 = 15 + 324

Reorder the terms:
324 + 36n + n2 = 15 + 324

Combine like terms: 15 + 324 = 339
324 + 36n + n2 = 339

Factor a perfect square on the left side:
(n + 18)(n + 18) = 339

Calculate the square root of the right side: 18.41195264

Break this problem into two subproblems by setting 
(n + 18) equal to 18.41195264 and -18.41195264.

Subproblem 1

n + 18 = 18.41195264 Simplifying n + 18 = 18.41195264 Reorder the terms: 18 + n = 18.41195264 Solving 18 + n = 18.41195264 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + n = 18.41195264 + -18 Combine like terms: 18 + -18 = 0 0 + n = 18.41195264 + -18 n = 18.41195264 + -18 Combine like terms: 18.41195264 + -18 = 0.41195264 n = 0.41195264 Simplifying n = 0.41195264

Subproblem 2

n + 18 = -18.41195264 Simplifying n + 18 = -18.41195264 Reorder the terms: 18 + n = -18.41195264 Solving 18 + n = -18.41195264 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + n = -18.41195264 + -18 Combine like terms: 18 + -18 = 0 0 + n = -18.41195264 + -18 n = -18.41195264 + -18 Combine like terms: -18.41195264 + -18 = -36.41195264 n = -36.41195264 Simplifying n = -36.41195264

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.41195264, -36.41195264}

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