b^2+5b+66=

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Solution for b^2+5b+66= equation:


Simplifying
b2 + 5b + 66 = 0

Reorder the terms:
66 + 5b + b2 = 0

Solving
66 + 5b + b2 = 0

Solving for variable 'b'.

Begin completing the square.

Move the constant term to the right:

Add '-66' to each side of the equation.
66 + 5b + -66 + b2 = 0 + -66

Reorder the terms:
66 + -66 + 5b + b2 = 0 + -66

Combine like terms: 66 + -66 = 0
0 + 5b + b2 = 0 + -66
5b + b2 = 0 + -66

Combine like terms: 0 + -66 = -66
5b + b2 = -66

The b term is 5b.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5b + 6.25 + b2 = -66 + 6.25

Reorder the terms:
6.25 + 5b + b2 = -66 + 6.25

Combine like terms: -66 + 6.25 = -59.75
6.25 + 5b + b2 = -59.75

Factor a perfect square on the left side:
(b + 2.5)(b + 2.5) = -59.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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