3u^2-5u+20=0

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Solution for 3u^2-5u+20=0 equation:


Simplifying
3u2 + -5u + 20 = 0

Reorder the terms:
20 + -5u + 3u2 = 0

Solving
20 + -5u + 3u2 = 0

Solving for variable 'u'.

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

Divide each side by '3'.
6.666666667 + -1.666666667u + u2 = 0

Move the constant term to the right:

Add '-6.666666667' to each side of the equation.
6.666666667 + -1.666666667u + -6.666666667 + u2 = 0 + -6.666666667

Reorder the terms:
6.666666667 + -6.666666667 + -1.666666667u + u2 = 0 + -6.666666667

Combine like terms: 6.666666667 + -6.666666667 = 0.000000000
0.000000000 + -1.666666667u + u2 = 0 + -6.666666667
-1.666666667u + u2 = 0 + -6.666666667

Combine like terms: 0 + -6.666666667 = -6.666666667
-1.666666667u + u2 = -6.666666667

The u term is -1.666666667u.  Take half its coefficient (-0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
-1.666666667u + 0.6944444447 + u2 = -6.666666667 + 0.6944444447

Reorder the terms:
0.6944444447 + -1.666666667u + u2 = -6.666666667 + 0.6944444447

Combine like terms: -6.666666667 + 0.6944444447 = -5.9722222223
0.6944444447 + -1.666666667u + u2 = -5.9722222223

Factor a perfect square on the left side:
(u + -0.8333333335)(u + -0.8333333335) = -5.9722222223

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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