9n^2+10=-8n

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Solution for 9n^2+10=-8n equation:


Simplifying
9n2 + 10 = -8n

Reorder the terms:
10 + 9n2 = -8n

Solving
10 + 9n2 = -8n

Solving for variable 'n'.

Reorder the terms:
10 + 8n + 9n2 = -8n + 8n

Combine like terms: -8n + 8n = 0
10 + 8n + 9n2 = 0

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

Divide each side by '9'.
1.111111111 + 0.8888888889n + n2 = 0

Move the constant term to the right:

Add '-1.111111111' to each side of the equation.
1.111111111 + 0.8888888889n + -1.111111111 + n2 = 0 + -1.111111111

Reorder the terms:
1.111111111 + -1.111111111 + 0.8888888889n + n2 = 0 + -1.111111111

Combine like terms: 1.111111111 + -1.111111111 = 0.000000000
0.000000000 + 0.8888888889n + n2 = 0 + -1.111111111
0.8888888889n + n2 = 0 + -1.111111111

Combine like terms: 0 + -1.111111111 = -1.111111111
0.8888888889n + n2 = -1.111111111

The n term is 0.8888888889n.  Take half its coefficient (0.4444444445).
Square it (0.1975308642) and add it to both sides.

Add '0.1975308642' to each side of the equation.
0.8888888889n + 0.1975308642 + n2 = -1.111111111 + 0.1975308642

Reorder the terms:
0.1975308642 + 0.8888888889n + n2 = -1.111111111 + 0.1975308642

Combine like terms: -1.111111111 + 0.1975308642 = -0.9135802468
0.1975308642 + 0.8888888889n + n2 = -0.9135802468

Factor a perfect square on the left side:
(n + 0.4444444445)(n + 0.4444444445) = -0.9135802468

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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