5n^2+10n-24=-12

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Solution for 5n^2+10n-24=-12 equation:


Simplifying
5n2 + 10n + -24 = -12

Reorder the terms:
-24 + 10n + 5n2 = -12

Solving
-24 + 10n + 5n2 = -12

Solving for variable 'n'.

Reorder the terms:
-24 + 12 + 10n + 5n2 = -12 + 12

Combine like terms: -24 + 12 = -12
-12 + 10n + 5n2 = -12 + 12

Combine like terms: -12 + 12 = 0
-12 + 10n + 5n2 = 0

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

Divide each side by '5'.
-2.4 + 2n + n2 = 0

Move the constant term to the right:

Add '2.4' to each side of the equation.
-2.4 + 2n + 2.4 + n2 = 0 + 2.4

Reorder the terms:
-2.4 + 2.4 + 2n + n2 = 0 + 2.4

Combine like terms: -2.4 + 2.4 = 0.0
0.0 + 2n + n2 = 0 + 2.4
2n + n2 = 0 + 2.4

Combine like terms: 0 + 2.4 = 2.4
2n + n2 = 2.4

The n term is 2n.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2n + 1 + n2 = 2.4 + 1

Reorder the terms:
1 + 2n + n2 = 2.4 + 1

Combine like terms: 2.4 + 1 = 3.4
1 + 2n + n2 = 3.4

Factor a perfect square on the left side:
(n + 1)(n + 1) = 3.4

Calculate the square root of the right side: 1.843908891

Break this problem into two subproblems by setting 
(n + 1) equal to 1.843908891 and -1.843908891.

Subproblem 1

n + 1 = 1.843908891 Simplifying n + 1 = 1.843908891 Reorder the terms: 1 + n = 1.843908891 Solving 1 + n = 1.843908891 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + n = 1.843908891 + -1 Combine like terms: 1 + -1 = 0 0 + n = 1.843908891 + -1 n = 1.843908891 + -1 Combine like terms: 1.843908891 + -1 = 0.843908891 n = 0.843908891 Simplifying n = 0.843908891

Subproblem 2

n + 1 = -1.843908891 Simplifying n + 1 = -1.843908891 Reorder the terms: 1 + n = -1.843908891 Solving 1 + n = -1.843908891 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + n = -1.843908891 + -1 Combine like terms: 1 + -1 = 0 0 + n = -1.843908891 + -1 n = -1.843908891 + -1 Combine like terms: -1.843908891 + -1 = -2.843908891 n = -2.843908891 Simplifying n = -2.843908891

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.843908891, -2.843908891}

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