Question

PLEASE PLEASE PLEASE HELP I really don’t understand this.

Answer 1

The second option is the answer.

Explanation:

Do f(x) first, and then plug that into g(x).

`f(x)=√(x+3)`

`(g o f)(x) = (√(x+3)^(2)+2 )/(√(x+3))=(x+5)/(√(x+3))`