Respuesta :

Answer:

a^2+2ah+h^2+3a+3h+5

Step-by-step explanation:

(a+h)^2+3(a+h)+5

(a+h)(a+h)+3a+3h+5

a^2+ah+ah+h^2+3a+3h+5

a^2+2ah+h^2+3a+3h+5