6u^2+11u+16=0

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Solution for 6u^2+11u+16=0 equation:


Simplifying
6u2 + 11u + 16 = 0

Reorder the terms:
16 + 11u + 6u2 = 0

Solving
16 + 11u + 6u2 = 0

Solving for variable 'u'.

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

Divide each side by '6'.
2.666666667 + 1.833333333u + u2 = 0

Move the constant term to the right:

Add '-2.666666667' to each side of the equation.
2.666666667 + 1.833333333u + -2.666666667 + u2 = 0 + -2.666666667

Reorder the terms:
2.666666667 + -2.666666667 + 1.833333333u + u2 = 0 + -2.666666667

Combine like terms: 2.666666667 + -2.666666667 = 0.000000000
0.000000000 + 1.833333333u + u2 = 0 + -2.666666667
1.833333333u + u2 = 0 + -2.666666667

Combine like terms: 0 + -2.666666667 = -2.666666667
1.833333333u + u2 = -2.666666667

The u term is 1.833333333u.  Take half its coefficient (0.9166666665).
Square it (0.8402777775) and add it to both sides.

Add '0.8402777775' to each side of the equation.
1.833333333u + 0.8402777775 + u2 = -2.666666667 + 0.8402777775

Reorder the terms:
0.8402777775 + 1.833333333u + u2 = -2.666666667 + 0.8402777775

Combine like terms: -2.666666667 + 0.8402777775 = -1.8263888895
0.8402777775 + 1.833333333u + u2 = -1.8263888895

Factor a perfect square on the left side:
(u + 0.9166666665)(u + 0.9166666665) = -1.8263888895

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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