Find (f + g)x, (f-g)x, (fg)x, and (f/g)x and their domains.

Question

f(x) = ¡î(9-x©÷), g(x) = ¡î(x©÷-4)

Answer 1

I cant read that Greek. Also, what in the world is (f/g) x? or (fg)x? or (f+g)x
does that last one really mean f(x)+g(x)?
Your symbols are not well understood.