9n^2+16n+18=0

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Solution for 9n^2+16n+18=0 equation:


Simplifying
9n2 + 16n + 18 = 0

Reorder the terms:
18 + 16n + 9n2 = 0

Solving
18 + 16n + 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'.
2 + 1.777777778n + n2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + 1.777777778n + -2 + n2 = 0 + -2

Reorder the terms:
2 + -2 + 1.777777778n + n2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 1.777777778n + n2 = 0 + -2
1.777777778n + n2 = 0 + -2

Combine like terms: 0 + -2 = -2
1.777777778n + n2 = -2

The n term is 1.777777778n.  Take half its coefficient (0.888888889).
Square it (0.7901234570) and add it to both sides.

Add '0.7901234570' to each side of the equation.
1.777777778n + 0.7901234570 + n2 = -2 + 0.7901234570

Reorder the terms:
0.7901234570 + 1.777777778n + n2 = -2 + 0.7901234570

Combine like terms: -2 + 0.7901234570 = -1.209876543
0.7901234570 + 1.777777778n + n2 = -1.209876543

Factor a perfect square on the left side:
(n + 0.888888889)(n + 0.888888889) = -1.209876543

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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