Respuesta :

Answer:

16a^8 b^18 c^2

Step-by-step explanation:

(4a^4b^9c)^2

=> 4^2(a^4)^2(b^9)^2 x c^2

evaluate the power

16 (a^4)^2(b^9)^2 x c^2

16a^8 b^18 c^2