2n^2+2n+1=0

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

Simplifying
2n2 + 2n + 1 = 0

Reorder the terms:
1 + 2n + 2n2 = 0

Solving
1 + 2n + 2n2 = 0

Solving for variable 'n'.

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

Divide each side by '2'.
0.5 + n + n2 = 0

Move the constant term to the right:

Add '-0.5' to each side of the equation.
0.5 + n + -0.5 + n2 = 0 + -0.5

Reorder the terms:
0.5 + -0.5 + n + n2 = 0 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + n + n2 = 0 + -0.5
n + n2 = 0 + -0.5

Combine like terms: 0 + -0.5 = -0.5
n + n2 = -0.5

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.
 + 0.25 + n2 = -0.5 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + n2 = -0.5 + 0.25

Combine like terms: -0.5 + 0.25 = -0.25
1.25 + n2 = -0.25

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

Can't calculate square root of the right side.

The solution to this equation could not be determined.