b^2+5b-4b=-6

Solution for b^2+5b-4b=-6 equation:

Simplifying
b2 + 5b + -4b = -6

Reorder the terms:
5b + -4b + b2 = -6

Combine like terms: 5b + -4b = 1b
1b + b2 = -6

Solving
1b + b2 = -6

Solving for variable 'b'.

Reorder the terms:
6 + 1b + b2 = -6 + 6

Combine like terms: -6 + 6 = 0
6 + 1b + b2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-6' to each side of the equation.
6 + 1b + -6 + b2 = 0 + -6

Reorder the terms:
6 + -6 + 1b + b2 = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 1b + b2 = 0 + -6
1b + b2 = 0 + -6

Combine like terms: 0 + -6 = -6
1b + b2 = -6

The b term is 1b.  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.
b + 0.25 + b2 = -6 + 0.25

Reorder the terms:
0.25 + b + b2 = -6 + 0.25

Combine like terms: -6 + 0.25 = -5.75
0.25 + b + b2 = -5.75

Factor a perfect square on the left side:
(b + 0.5)(b + 0.5) = -5.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.