100-(x*x)=64

Solution for 100-(x*x)=64 equation:

Simplifying
100 + -1(x * x) = 64

Multiply x * x
100 + -1(x2) = 64

Solving
100 + -1x2 = 64

Solving for variable 'x'.

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

Add '-100' to each side of the equation.
100 + -100 + -1x2 = 64 + -100

Combine like terms: 100 + -100 = 0
0 + -1x2 = 64 + -100
-1x2 = 64 + -100

Combine like terms: 64 + -100 = -36
-1x2 = -36

Divide each side by '-1'.
x2 = 36

Simplifying
x2 = 36

Take the square root of each side:
x = {-6, 6}