81+b^2=289

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Solution for 81+b^2=289 equation: 


Simplifying
81 + b2 = 289

Solving
81 + b2 = 289

Solving for variable 'b'.

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

Add '-81' to each side of the equation.
81 + -81 + b2 = 289 + -81

Combine like terms: 81 + -81 = 0
0 + b2 = 289 + -81
b2 = 289 + -81

Combine like terms: 289 + -81 = 208
b2 = 208

Simplifying
b2 = 208

Take the square root of each side:
b = {-14.422205102, 14.422205102}

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