-9n^2-24n+16=0

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Solution for -9n^2-24n+16=0 equation:


Simplifying
-9n2 + -24n + 16 = 0

Reorder the terms:
16 + -24n + -9n2 = 0

Solving
16 + -24n + -9n2 = 0

Solving for variable 'n'.

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

Divide each side by '-9'.
-1.777777778 + 2.666666667n + n2 = 0

Move the constant term to the right:

Add '1.777777778' to each side of the equation.
-1.777777778 + 2.666666667n + 1.777777778 + n2 = 0 + 1.777777778

Reorder the terms:
-1.777777778 + 1.777777778 + 2.666666667n + n2 = 0 + 1.777777778

Combine like terms: -1.777777778 + 1.777777778 = 0.000000000
0.000000000 + 2.666666667n + n2 = 0 + 1.777777778
2.666666667n + n2 = 0 + 1.777777778

Combine like terms: 0 + 1.777777778 = 1.777777778
2.666666667n + n2 = 1.777777778

The n term is 2.666666667n.  Take half its coefficient (1.333333334).
Square it (1.777777780) and add it to both sides.

Add '1.777777780' to each side of the equation.
2.666666667n + 1.777777780 + n2 = 1.777777778 + 1.777777780

Reorder the terms:
1.777777780 + 2.666666667n + n2 = 1.777777778 + 1.777777780

Combine like terms: 1.777777778 + 1.777777780 = 3.555555558
1.777777780 + 2.666666667n + n2 = 3.555555558

Factor a perfect square on the left side:
(n + 1.333333334)(n + 1.333333334) = 3.555555558

Calculate the square root of the right side: 1.885618084

Break this problem into two subproblems by setting 
(n + 1.333333334) equal to 1.885618084 and -1.885618084.

Subproblem 1

n + 1.333333334 = 1.885618084 Simplifying n + 1.333333334 = 1.885618084 Reorder the terms: 1.333333334 + n = 1.885618084 Solving 1.333333334 + n = 1.885618084 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + n = 1.885618084 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + n = 1.885618084 + -1.333333334 n = 1.885618084 + -1.333333334 Combine like terms: 1.885618084 + -1.333333334 = 0.55228475 n = 0.55228475 Simplifying n = 0.55228475

Subproblem 2

n + 1.333333334 = -1.885618084 Simplifying n + 1.333333334 = -1.885618084 Reorder the terms: 1.333333334 + n = -1.885618084 Solving 1.333333334 + n = -1.885618084 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + n = -1.885618084 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + n = -1.885618084 + -1.333333334 n = -1.885618084 + -1.333333334 Combine like terms: -1.885618084 + -1.333333334 = -3.218951418 n = -3.218951418 Simplifying n = -3.218951418

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.55228475, -3.218951418}

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