Respuesta :

Answer:

A

Step-by-step explanation:

Substitute a + 2 for x:

f(a + 2) = 3 [ (a + 2) + 5 ]  + 4 / (a + 2)

            = 3 [ a + 7 ] + 4 / (a + 2)

Answer:

A.

Step-by-step explanation: