The domain of the function

Question

The domain of the function  is all real numbers except for

Answer 1

if you mean (x+8)/(x-3)

then the domain is all real numbers except x =3

but if you really meant x + 8/x -3 as it seems to be written, or also (x+8)/x -3 then the domain is all real numbers except x = 0

the domain is all real numbers except when x makes the denominator = 0