Question

What is (f . g) (x)?

Answer 1

it’s probably option 1 and the other person explained so yeah

Answer 2

I think you’re answer is option 1: 3x^2+5.

Explanation:

Evaluate f(x^2+2) by substituting in the value of g into f.
f(x^2+2)=3(x^2+2)-1

Then apply distributive property.
f(x^2+2)=3x^2+3•2-1

Then multiply 3 by 2.
f(x^2+2)=3x^2+6-1

Then subtract 1 from 6.
f(x^2+2)=3x^2+5