2n^2+6n+25=5184

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Solution for 2n^2+6n+25=5184 equation:


Simplifying
2n2 + 6n + 25 = 5184

Reorder the terms:
25 + 6n + 2n2 = 5184

Solving
25 + 6n + 2n2 = 5184

Solving for variable 'n'.

Reorder the terms:
25 + -5184 + 6n + 2n2 = 5184 + -5184

Combine like terms: 25 + -5184 = -5159
-5159 + 6n + 2n2 = 5184 + -5184

Combine like terms: 5184 + -5184 = 0
-5159 + 6n + 2n2 = 0

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

Divide each side by '2'.
-2579.5 + 3n + n2 = 0

Move the constant term to the right:

Add '2579.5' to each side of the equation.
-2579.5 + 3n + 2579.5 + n2 = 0 + 2579.5

Reorder the terms:
-2579.5 + 2579.5 + 3n + n2 = 0 + 2579.5

Combine like terms: -2579.5 + 2579.5 = 0.0
0.0 + 3n + n2 = 0 + 2579.5
3n + n2 = 0 + 2579.5

Combine like terms: 0 + 2579.5 = 2579.5
3n + n2 = 2579.5

The n term is 3n.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3n + 2.25 + n2 = 2579.5 + 2.25

Reorder the terms:
2.25 + 3n + n2 = 2579.5 + 2.25

Combine like terms: 2579.5 + 2.25 = 2581.75
2.25 + 3n + n2 = 2581.75

Factor a perfect square on the left side:
(n + 1.5)(n + 1.5) = 2581.75

Calculate the square root of the right side: 50.810924022

Break this problem into two subproblems by setting 
(n + 1.5) equal to 50.810924022 and -50.810924022.

Subproblem 1

n + 1.5 = 50.810924022 Simplifying n + 1.5 = 50.810924022 Reorder the terms: 1.5 + n = 50.810924022 Solving 1.5 + n = 50.810924022 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + n = 50.810924022 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + n = 50.810924022 + -1.5 n = 50.810924022 + -1.5 Combine like terms: 50.810924022 + -1.5 = 49.310924022 n = 49.310924022 Simplifying n = 49.310924022

Subproblem 2

n + 1.5 = -50.810924022 Simplifying n + 1.5 = -50.810924022 Reorder the terms: 1.5 + n = -50.810924022 Solving 1.5 + n = -50.810924022 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + n = -50.810924022 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + n = -50.810924022 + -1.5 n = -50.810924022 + -1.5 Combine like terms: -50.810924022 + -1.5 = -52.310924022 n = -52.310924022 Simplifying n = -52.310924022

Solution

The solution to the problem is based on the solutions from the subproblems. n = {49.310924022, -52.310924022}

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