n^2+8n-24=0

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Solution for n^2+8n-24=0 equation:


Simplifying
n2 + 8n + -24 = 0

Reorder the terms:
-24 + 8n + n2 = 0

Solving
-24 + 8n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + 8n + 24 + n2 = 0 + 24

Reorder the terms:
-24 + 24 + 8n + n2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + 8n + n2 = 0 + 24
8n + n2 = 0 + 24

Combine like terms: 0 + 24 = 24
8n + n2 = 24

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 = 24 + 16

Reorder the terms:
16 + 8n + n2 = 24 + 16

Combine like terms: 24 + 16 = 40
16 + 8n + n2 = 40

Factor a perfect square on the left side:
(n + 4)(n + 4) = 40

Calculate the square root of the right side: 6.32455532

Break this problem into two subproblems by setting 
(n + 4) equal to 6.32455532 and -6.32455532.

Subproblem 1

n + 4 = 6.32455532 Simplifying n + 4 = 6.32455532 Reorder the terms: 4 + n = 6.32455532 Solving 4 + n = 6.32455532 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 = 6.32455532 + -4 Combine like terms: 4 + -4 = 0 0 + n = 6.32455532 + -4 n = 6.32455532 + -4 Combine like terms: 6.32455532 + -4 = 2.32455532 n = 2.32455532 Simplifying n = 2.32455532

Subproblem 2

n + 4 = -6.32455532 Simplifying n + 4 = -6.32455532 Reorder the terms: 4 + n = -6.32455532 Solving 4 + n = -6.32455532 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 = -6.32455532 + -4 Combine like terms: 4 + -4 = 0 0 + n = -6.32455532 + -4 n = -6.32455532 + -4 Combine like terms: -6.32455532 + -4 = -10.32455532 n = -10.32455532 Simplifying n = -10.32455532

Solution

The solution to the problem is based on the solutions from the subproblems. n = {2.32455532, -10.32455532}

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