n^2-18n-37=-8

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Solution for n^2-18n-37=-8 equation:


Simplifying
n2 + -18n + -37 = -8

Reorder the terms:
-37 + -18n + n2 = -8

Solving
-37 + -18n + n2 = -8

Solving for variable 'n'.

Reorder the terms:
-37 + 8 + -18n + n2 = -8 + 8

Combine like terms: -37 + 8 = -29
-29 + -18n + n2 = -8 + 8

Combine like terms: -8 + 8 = 0
-29 + -18n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '29' to each side of the equation.
-29 + -18n + 29 + n2 = 0 + 29

Reorder the terms:
-29 + 29 + -18n + n2 = 0 + 29

Combine like terms: -29 + 29 = 0
0 + -18n + n2 = 0 + 29
-18n + n2 = 0 + 29

Combine like terms: 0 + 29 = 29
-18n + n2 = 29

The n term is -18n.  Take half its coefficient (-9).
Square it (81) and add it to both sides.

Add '81' to each side of the equation.
-18n + 81 + n2 = 29 + 81

Reorder the terms:
81 + -18n + n2 = 29 + 81

Combine like terms: 29 + 81 = 110
81 + -18n + n2 = 110

Factor a perfect square on the left side:
(n + -9)(n + -9) = 110

Calculate the square root of the right side: 10.488088482

Break this problem into two subproblems by setting 
(n + -9) equal to 10.488088482 and -10.488088482.

Subproblem 1

n + -9 = 10.488088482 Simplifying n + -9 = 10.488088482 Reorder the terms: -9 + n = 10.488088482 Solving -9 + n = 10.488088482 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + n = 10.488088482 + 9 Combine like terms: -9 + 9 = 0 0 + n = 10.488088482 + 9 n = 10.488088482 + 9 Combine like terms: 10.488088482 + 9 = 19.488088482 n = 19.488088482 Simplifying n = 19.488088482

Subproblem 2

n + -9 = -10.488088482 Simplifying n + -9 = -10.488088482 Reorder the terms: -9 + n = -10.488088482 Solving -9 + n = -10.488088482 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + n = -10.488088482 + 9 Combine like terms: -9 + 9 = 0 0 + n = -10.488088482 + 9 n = -10.488088482 + 9 Combine like terms: -10.488088482 + 9 = -1.488088482 n = -1.488088482 Simplifying n = -1.488088482

Solution

The solution to the problem is based on the solutions from the subproblems. n = {19.488088482, -1.488088482}

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