Answer:
2^16, 4^8 & 16^4
Step-by-step explanation:
=> (4^3)^2 × 4^2 = 4^6 × 4^2 = 4^8
=> 4^8 = (2^2)^8 =2^16
=> 4^8 = (4^2)^4 = 16^4
