(8*8)+(b*b)=(15*15)

Solution for (8*8)+(b*b)=(15*15) equation:

Simplifying
(8 * 8) + (b * b) = (15 * 15)

Multiply 8 * 8
(64) + (b * b) = (15 * 15)
64 + (b * b) = (15 * 15)

Multiply b * b
64 + (b2) = (15 * 15)
64 + b2 = (15 * 15)

Multiply 15 * 15
64 + b2 = (225)
64 + b2 = 225

Solving
64 + b2 = 225

Solving for variable 'b'.

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

Add '-64' to each side of the equation.
64 + -64 + b2 = 225 + -64

Combine like terms: 64 + -64 = 0
0 + b2 = 225 + -64
b2 = 225 + -64

Combine like terms: 225 + -64 = 161
b2 = 161

Simplifying
b2 = 161

Take the square root of each side:
b = {-12.68857754, 12.68857754}