9n^2-18n-95=3

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Solution for 9n^2-18n-95=3 equation:


Simplifying
9n2 + -18n + -95 = 3

Reorder the terms:
-95 + -18n + 9n2 = 3

Solving
-95 + -18n + 9n2 = 3

Solving for variable 'n'.

Reorder the terms:
-95 + -3 + -18n + 9n2 = 3 + -3

Combine like terms: -95 + -3 = -98
-98 + -18n + 9n2 = 3 + -3

Combine like terms: 3 + -3 = 0
-98 + -18n + 9n2 = 0

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

Divide each side by '9'.
-10.88888889 + -2n + n2 = 0

Move the constant term to the right:

Add '10.88888889' to each side of the equation.
-10.88888889 + -2n + 10.88888889 + n2 = 0 + 10.88888889

Reorder the terms:
-10.88888889 + 10.88888889 + -2n + n2 = 0 + 10.88888889

Combine like terms: -10.88888889 + 10.88888889 = 0.00000000
0.00000000 + -2n + n2 = 0 + 10.88888889
-2n + n2 = 0 + 10.88888889

Combine like terms: 0 + 10.88888889 = 10.88888889
-2n + n2 = 10.88888889

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 = 10.88888889 + 1

Reorder the terms:
1 + -2n + n2 = 10.88888889 + 1

Combine like terms: 10.88888889 + 1 = 11.88888889
1 + -2n + n2 = 11.88888889

Factor a perfect square on the left side:
(n + -1)(n + -1) = 11.88888889

Calculate the square root of the right side: 3.448026811

Break this problem into two subproblems by setting 
(n + -1) equal to 3.448026811 and -3.448026811.

Subproblem 1

n + -1 = 3.448026811 Simplifying n + -1 = 3.448026811 Reorder the terms: -1 + n = 3.448026811 Solving -1 + n = 3.448026811 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 = 3.448026811 + 1 Combine like terms: -1 + 1 = 0 0 + n = 3.448026811 + 1 n = 3.448026811 + 1 Combine like terms: 3.448026811 + 1 = 4.448026811 n = 4.448026811 Simplifying n = 4.448026811

Subproblem 2

n + -1 = -3.448026811 Simplifying n + -1 = -3.448026811 Reorder the terms: -1 + n = -3.448026811 Solving -1 + n = -3.448026811 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 = -3.448026811 + 1 Combine like terms: -1 + 1 = 0 0 + n = -3.448026811 + 1 n = -3.448026811 + 1 Combine like terms: -3.448026811 + 1 = -2.448026811 n = -2.448026811 Simplifying n = -2.448026811

Solution

The solution to the problem is based on the solutions from the subproblems. n = {4.448026811, -2.448026811}

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