3n^2-4n+20=

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Solution for 3n^2-4n+20= equation:


Simplifying
3n2 + -4n + 20 = 0

Reorder the terms:
20 + -4n + 3n2 = 0

Solving
20 + -4n + 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'.
6.666666667 + -1.333333333n + n2 = 0

Move the constant term to the right:

Add '-6.666666667' to each side of the equation.
6.666666667 + -1.333333333n + -6.666666667 + n2 = 0 + -6.666666667

Reorder the terms:
6.666666667 + -6.666666667 + -1.333333333n + n2 = 0 + -6.666666667

Combine like terms: 6.666666667 + -6.666666667 = 0.000000000
0.000000000 + -1.333333333n + n2 = 0 + -6.666666667
-1.333333333n + n2 = 0 + -6.666666667

Combine like terms: 0 + -6.666666667 = -6.666666667
-1.333333333n + n2 = -6.666666667

The n term is -1.333333333n.  Take half its coefficient (-0.6666666665).
Square it (0.4444444442) and add it to both sides.

Add '0.4444444442' to each side of the equation.
-1.333333333n + 0.4444444442 + n2 = -6.666666667 + 0.4444444442

Reorder the terms:
0.4444444442 + -1.333333333n + n2 = -6.666666667 + 0.4444444442

Combine like terms: -6.666666667 + 0.4444444442 = -6.2222222228
0.4444444442 + -1.333333333n + n2 = -6.2222222228

Factor a perfect square on the left side:
(n + -0.6666666665)(n + -0.6666666665) = -6.2222222228

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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