-3n^2+n-9=0

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Solution for -3n^2+n-9=0 equation:


Simplifying
-3n2 + n + -9 = 0

Reorder the terms:
-9 + n + -3n2 = 0

Solving
-9 + n + -3n2 = 0

Solving for variable 'n'.

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
3 + -0.3333333333n + n2 = 0

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -0.3333333333n + -3 + n2 = 0 + -3

Reorder the terms:
3 + -3 + -0.3333333333n + n2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -0.3333333333n + n2 = 0 + -3
-0.3333333333n + n2 = 0 + -3

Combine like terms: 0 + -3 = -3
-0.3333333333n + n2 = -3

The n term is n.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-0.3333333333n + 0.25 + n2 = -3 + 0.25

Reorder the terms:
0.25 + -0.3333333333n + n2 = -3 + 0.25

Combine like terms: -3 + 0.25 = -2.75
0.25 + -0.3333333333n + n2 = -2.75

Factor a perfect square on the left side:
(n + 0.5)(n + 0.5) = -2.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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