Respuesta :

Answer:

answer is C i think

Step-by-step explanation:

Answer:

3a^4 - 2a^2 + a/4 ( 3rd option)

Step-by-step explanation:

(a^3*(12a^4-8a^2+x))/4a^3

(12a^4-8a^2+a)/4

3a^4-2a^2+a/4