5n^2-3n-96=0

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Solution for 5n^2-3n-96=0 equation:


Simplifying
5n2 + -3n + -96 = 0

Reorder the terms:
-96 + -3n + 5n2 = 0

Solving
-96 + -3n + 5n2 = 0

Solving for variable 'n'.

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

Divide each side by '5'.
-19.2 + -0.6n + n2 = 0

Move the constant term to the right:

Add '19.2' to each side of the equation.
-19.2 + -0.6n + 19.2 + n2 = 0 + 19.2

Reorder the terms:
-19.2 + 19.2 + -0.6n + n2 = 0 + 19.2

Combine like terms: -19.2 + 19.2 = 0.0
0.0 + -0.6n + n2 = 0 + 19.2
-0.6n + n2 = 0 + 19.2

Combine like terms: 0 + 19.2 = 19.2
-0.6n + n2 = 19.2

The n term is -0.6n.  Take half its coefficient (-0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
-0.6n + 0.09 + n2 = 19.2 + 0.09

Reorder the terms:
0.09 + -0.6n + n2 = 19.2 + 0.09

Combine like terms: 19.2 + 0.09 = 19.29
0.09 + -0.6n + n2 = 19.29

Factor a perfect square on the left side:
(n + -0.3)(n + -0.3) = 19.29

Calculate the square root of the right side: 4.392038251

Break this problem into two subproblems by setting 
(n + -0.3) equal to 4.392038251 and -4.392038251.

Subproblem 1

n + -0.3 = 4.392038251 Simplifying n + -0.3 = 4.392038251 Reorder the terms: -0.3 + n = 4.392038251 Solving -0.3 + n = 4.392038251 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + n = 4.392038251 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + n = 4.392038251 + 0.3 n = 4.392038251 + 0.3 Combine like terms: 4.392038251 + 0.3 = 4.692038251 n = 4.692038251 Simplifying n = 4.692038251

Subproblem 2

n + -0.3 = -4.392038251 Simplifying n + -0.3 = -4.392038251 Reorder the terms: -0.3 + n = -4.392038251 Solving -0.3 + n = -4.392038251 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + n = -4.392038251 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + n = -4.392038251 + 0.3 n = -4.392038251 + 0.3 Combine like terms: -4.392038251 + 0.3 = -4.092038251 n = -4.092038251 Simplifying n = -4.092038251

Solution

The solution to the problem is based on the solutions from the subproblems. n = {4.692038251, -4.092038251}

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