2u^2+2u+1=0

Solution for 2u^2+2u+1=0 equation:

Simplifying
2u2 + 2u + 1 = 0

Reorder the terms:
1 + 2u + 2u2 = 0

Solving
1 + 2u + 2u2 = 0

Solving for variable 'u'.

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

Divide each side by '2'.
0.5 + u + u2 = 0

Move the constant term to the right:

Add '-0.5' to each side of the equation.
0.5 + u + -0.5 + u2 = 0 + -0.5

Reorder the terms:
0.5 + -0.5 + u + u2 = 0 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + u + u2 = 0 + -0.5
u + u2 = 0 + -0.5

Combine like terms: 0 + -0.5 = -0.5
u + u2 = -0.5

The u term is u.  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.
 + 0.25 + u2 = -0.5 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + u2 = -0.5 + 0.25

Combine like terms: -0.5 + 0.25 = -0.25
1.25 + u2 = -0.25

Factor a perfect square on the left side:
(u + 0.5)(u + 0.5) = -0.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.