jawab pake cara yah kakak;)

(6^4 . 15^-3)/ 12^-2
= 6^4 . 15^-3 . 12^2
= (2 . 3)^4 . (3 . 5)^-3 . (2^2 . 3)^2
= 2^4 . 3^4 . 3^-3 . 5^-3 . 2^4 . 3^2
= 2^(4 + 4) . 3^(4 - 3 + 2) . 5^-3
= 2^8 . 3^3 . 5^-3
= (2^8 . 3^3) / 5^3

^ = pangkat