(5*5)+(x*x)=(8*8)

Solution for (5*5)+(x*x)=(8*8) equation:

Simplifying
(5 * 5) + (x * x) = (8 * 8)

Multiply 5 * 5
(25) + (x * x) = (8 * 8)
25 + (x * x) = (8 * 8)

Multiply x * x
25 + (x2) = (8 * 8)
25 + x2 = (8 * 8)

Multiply 8 * 8
25 + x2 = (64)
25 + x2 = 64

Solving
25 + x2 = 64

Solving for variable 'x'.

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

Add '-25' to each side of the equation.
25 + -25 + x2 = 64 + -25

Combine like terms: 25 + -25 = 0
0 + x2 = 64 + -25
x2 = 64 + -25

Combine like terms: 64 + -25 = 39
x2 = 39

Simplifying
x2 = 39

Take the square root of each side:
x = {-6.244997998, 6.244997998}