Algebra
posted by Jen .
I have some problems that I need help with please. Thanxs!
Find the domain of the function.
1. f(x)=8x2
Given fuctions f and g, perform the indicated operations.
2. f(x)=4x9 g(x)=7x3
find f  g.
Given the functions f and g, determine the domain of f + g.
3. f(x)=2x/x3 , g(x)=3/x+6

I will be happy to critique your work or thinking on this.