Question

f(x)=1/x and g(x)=x^2-6x what 2 numbers are not in the domain of f times g

Answer 1

f(x) = 1/x
g(x) = x^2 - 6x
(f * g)(x) = 1/x(x^2 - 6x) = x - 6

The domain of (f * g)(x) is all real numbers.