10n+7+5n^2+5n+1+4n^2+n=

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Solution for 10n+7+5n^2+5n+1+4n^2+n= equation:


Simplifying
10n + 7 + 5n2 + 5n + 1 + 4n2 + n = 0

Reorder the terms:
7 + 1 + 10n + 5n + n + 5n2 + 4n2 = 0

Combine like terms: 7 + 1 = 8
8 + 10n + 5n + n + 5n2 + 4n2 = 0

Combine like terms: 10n + 5n = 15n
8 + 15n + n + 5n2 + 4n2 = 0

Combine like terms: 15n + n = 16n
8 + 16n + 5n2 + 4n2 = 0

Combine like terms: 5n2 + 4n2 = 9n2
8 + 16n + 9n2 = 0

Solving
8 + 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'.
0.8888888889 + 1.777777778n + n2 = 0

Move the constant term to the right:

Add '-0.8888888889' to each side of the equation.
0.8888888889 + 1.777777778n + -0.8888888889 + n2 = 0 + -0.8888888889

Reorder the terms:
0.8888888889 + -0.8888888889 + 1.777777778n + n2 = 0 + -0.8888888889

Combine like terms: 0.8888888889 + -0.8888888889 = 0.0000000000
0.0000000000 + 1.777777778n + n2 = 0 + -0.8888888889
1.777777778n + n2 = 0 + -0.8888888889

Combine like terms: 0 + -0.8888888889 = -0.8888888889
1.777777778n + n2 = -0.8888888889

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 = -0.8888888889 + 0.7901234570

Reorder the terms:
0.7901234570 + 1.777777778n + n2 = -0.8888888889 + 0.7901234570

Combine like terms: -0.8888888889 + 0.7901234570 = -0.0987654319
0.7901234570 + 1.777777778n + n2 = -0.0987654319

Factor a perfect square on the left side:
(n + 0.888888889)(n + 0.888888889) = -0.0987654319

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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