b^2=-7-2b

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Solution for b^2=-7-2b equation:


Simplifying
b2 = -7 + -2b

Solving
b2 = -7 + -2b

Solving for variable 'b'.

Reorder the terms:
7 + 2b + b2 = -7 + -2b + 7 + 2b

Reorder the terms:
7 + 2b + b2 = -7 + 7 + -2b + 2b

Combine like terms: -7 + 7 = 0
7 + 2b + b2 = 0 + -2b + 2b
7 + 2b + b2 = -2b + 2b

Combine like terms: -2b + 2b = 0
7 + 2b + b2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + 2b + -7 + b2 = 0 + -7

Reorder the terms:
7 + -7 + 2b + b2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 2b + b2 = 0 + -7
2b + b2 = 0 + -7

Combine like terms: 0 + -7 = -7
2b + b2 = -7

The b term is 2b.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2b + 1 + b2 = -7 + 1

Reorder the terms:
1 + 2b + b2 = -7 + 1

Combine like terms: -7 + 1 = -6
1 + 2b + b2 = -6

Factor a perfect square on the left side:
(b + 1)(b + 1) = -6

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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