5n^2-6n-48=0

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Solution for 5n^2-6n-48=0 equation:


Simplifying
5n2 + -6n + -48 = 0

Reorder the terms:
-48 + -6n + 5n2 = 0

Solving
-48 + -6n + 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'.
-9.6 + -1.2n + n2 = 0

Move the constant term to the right:

Add '9.6' to each side of the equation.
-9.6 + -1.2n + 9.6 + n2 = 0 + 9.6

Reorder the terms:
-9.6 + 9.6 + -1.2n + n2 = 0 + 9.6

Combine like terms: -9.6 + 9.6 = 0.0
0.0 + -1.2n + n2 = 0 + 9.6
-1.2n + n2 = 0 + 9.6

Combine like terms: 0 + 9.6 = 9.6
-1.2n + n2 = 9.6

The n term is -1.2n.  Take half its coefficient (-0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
-1.2n + 0.36 + n2 = 9.6 + 0.36

Reorder the terms:
0.36 + -1.2n + n2 = 9.6 + 0.36

Combine like terms: 9.6 + 0.36 = 9.96
0.36 + -1.2n + n2 = 9.96

Factor a perfect square on the left side:
(n + -0.6)(n + -0.6) = 9.96

Calculate the square root of the right side: 3.155946768

Break this problem into two subproblems by setting 
(n + -0.6) equal to 3.155946768 and -3.155946768.

Subproblem 1

n + -0.6 = 3.155946768 Simplifying n + -0.6 = 3.155946768 Reorder the terms: -0.6 + n = 3.155946768 Solving -0.6 + n = 3.155946768 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.6' to each side of the equation. -0.6 + 0.6 + n = 3.155946768 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + n = 3.155946768 + 0.6 n = 3.155946768 + 0.6 Combine like terms: 3.155946768 + 0.6 = 3.755946768 n = 3.755946768 Simplifying n = 3.755946768

Subproblem 2

n + -0.6 = -3.155946768 Simplifying n + -0.6 = -3.155946768 Reorder the terms: -0.6 + n = -3.155946768 Solving -0.6 + n = -3.155946768 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.6' to each side of the equation. -0.6 + 0.6 + n = -3.155946768 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + n = -3.155946768 + 0.6 n = -3.155946768 + 0.6 Combine like terms: -3.155946768 + 0.6 = -2.555946768 n = -2.555946768 Simplifying n = -2.555946768

Solution

The solution to the problem is based on the solutions from the subproblems. n = {3.755946768, -2.555946768}

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