b^2+6b+20=-5

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Solution for b^2+6b+20=-5 equation:


Simplifying
b2 + 6b + 20 = -5

Reorder the terms:
20 + 6b + b2 = -5

Solving
20 + 6b + b2 = -5

Solving for variable 'b'.

Reorder the terms:
20 + 5 + 6b + b2 = -5 + 5

Combine like terms: 20 + 5 = 25
25 + 6b + b2 = -5 + 5

Combine like terms: -5 + 5 = 0
25 + 6b + b2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-25' to each side of the equation.
25 + 6b + -25 + b2 = 0 + -25

Reorder the terms:
25 + -25 + 6b + b2 = 0 + -25

Combine like terms: 25 + -25 = 0
0 + 6b + b2 = 0 + -25
6b + b2 = 0 + -25

Combine like terms: 0 + -25 = -25
6b + b2 = -25

The b term is 6b.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6b + 9 + b2 = -25 + 9

Reorder the terms:
9 + 6b + b2 = -25 + 9

Combine like terms: -25 + 9 = -16
9 + 6b + b2 = -16

Factor a perfect square on the left side:
(b + 3)(b + 3) = -16

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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