a)27^6:9^3=(3^3)^6:(3^2)^3=3^18:3^6=3^12
b)4^20:2^15=(2^2)^20:2^15=2^40:2^15=2^25
a) 27^6 : 9^3
= ( 3^3)^6 : ( 3^2)^3
= 3^18 : 3^6
= 3^12
b) 4^20 : 2^15
= ( 2^2)^20 : 2^15
= 2^40 : 2^15
= 2^25
d) 64^4 x 16^5 : 4^20
= (4^3)^4 x (4^2)^5 : 4^20
= 4^12 x 4^10 : 4^20
= 4^22 : 4^20
= 4^2
Sao ai cx lm có một tí thế nhở :P nhưng kô sao
c) 24^n : 2^2n
= ( 4.6)^2 : 2^2n
= 4^n . 6^n : 2^2n
= ( 2^2n ) . 6^n : 2^2n
= 2^2n . 6^n : 2^2n
= 6^n
e) 32^4 : 8^6
= ( 2^5 )^4 : ( 2^3)^6
= 2^20 : 2^18
= 2^2
d)64^4x16^5:4^20=(4^3)^4x(4^2)^5:4^20=4^12x4^10:4^20=4^22:4^20=4^2
e)32^4:8^6=(2^5)^4:(2^3)^6=2^20:2^18=2^2
-----H--------T---
a) 27^6 : 9^3
=( 3^3)^6 : (3^2)^3
= 3^18 : 3^6
= 3^12
b) 4^20 : 2^15
= (2^2)^20 : 2^15
= 2^40 : 2^15
= 2^5
c) 24^n : 2^2n
= 24^n : 4^n
= ( 24 : 4)^n
= 6^n
d) 64^4 x 16^5 : 4^20
= (4^3)^4 x (4^2)^5 : 4^20
= 4^12 x 4^10 : 4^20
= 4^22: 4^20
= 4^2
e) 32^4 : 8^6
= (2^5)^4 : (2^3)^6
= 2^20 : 2^18
= 2^2