Answer:
The domain is
x ≥ -11/4
Step-by-step explanation:
Please, see attached images below
The equation is
f(x) = √(4x+9+2)
f(x) = √(4x+11)
Since the argument of the root must be positive or equal to zero
4x +11 ≥ 0
x ≥ -11/4
The domain is
x ≥ -11/4