Find following

Question

(f•g) (x)  f(x)=3x-2 g(x)=square root x

Answer 1

If you're looking for "f of g"(x), you'll want to plug g(x) = √x into f(x) everywhere you see an x:

 

(f•g)(x) = f(g(x)) = 3(g(x)) - 2 = 3(√x) - 2

Answer 2

(f*g)(x) =

 

f(x)*g(x) =

 

(3x - 2)√x =

 

3x√(x) - 2√(x)