Question

[Trần Ly]

a) 2^7 . 9^3 / 6^5 . 8^2

b) 6^10 . 27^5 / 4^5 . 81^6

c) 3^18 . 32^9 / 64^7 . 27^6

d)  9^12 . 3^5 + 9^15 / ( 2. 27 )^5 . 3^14

e) 5^4 + 2^2 . 5^2 - 125 / 2^3 . 3

Answer 1

[Đỗ Văn Hoài Tuân]

a) 2^7 . 9^3 / 6^5 . 8^2

= 2^7 . 3^9 / 2^5 . 3^5 . 2^6

= 2^-4 . 3^4