Answer:
-3/a^15
Step-by-step explanation:
(12a^5) / -4(a^5)^4
-4(a^5)^4 i am going to simplfy it fist.
-4(a^20)
-4a^20
12 / -4 = -3
a^5/a^20=1/a^15
answer= -3/a^15
