4+B^2=81

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Solution for 4+B^2=81 equation: 


Simplifying
4 + B2 = 81

Solving
4 + B2 = 81

Solving for variable 'B'.

Move all terms containing B to the left, all other terms to the right.

Add '-4' to each side of the equation.
4 + -4 + B2 = 81 + -4

Combine like terms: 4 + -4 = 0
0 + B2 = 81 + -4
B2 = 81 + -4

Combine like terms: 81 + -4 = 77
B2 = 77

Simplifying
B2 = 77

Take the square root of each side:
B = {-8.774964387, 8.774964387}

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