-5b^2+3b-1=0

Solution for -5b^2+3b-1=0 equation:

Simplifying
-5b2 + 3b + -1 = 0

Reorder the terms:
-1 + 3b + -5b2 = 0

Solving
-1 + 3b + -5b2 = 0

Solving for variable 'b'.

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
0.2 + -0.6b + b2 = 0

Move the constant term to the right:

Add '-0.2' to each side of the equation.
0.2 + -0.6b + -0.2 + b2 = 0 + -0.2

Reorder the terms:
0.2 + -0.2 + -0.6b + b2 = 0 + -0.2

Combine like terms: 0.2 + -0.2 = 0.0
0.0 + -0.6b + b2 = 0 + -0.2
-0.6b + b2 = 0 + -0.2

Combine like terms: 0 + -0.2 = -0.2
-0.6b + b2 = -0.2

The b term is -0.6b.  Take half its coefficient (-0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
-0.6b + 0.09 + b2 = -0.2 + 0.09

Reorder the terms:
0.09 + -0.6b + b2 = -0.2 + 0.09

Combine like terms: -0.2 + 0.09 = -0.11
0.09 + -0.6b + b2 = -0.11

Factor a perfect square on the left side:
(b + -0.3)(b + -0.3) = -0.11

Can't calculate square root of the right side.

The solution to this equation could not be determined.