a ) 4 . 4 . 4 . 4 = 44
b ) 3 . 3 . 3 . 5 . 5 . 5 = 15 . 15 . 15 = 153
nhé !
a) 4 . 4 . 4 . 4 . 4 = 45 = 4^5
b) 3 . 3 . 3 . 5 . 5 . 5 = 33 . 53 = 3^3 . 5^3
a) 4.4.4.4.4
=45 ( 5 thừa số 4)
b) 3.3.3.5.5.5
=(3.3.3).(5.5.5)
=33.53
a) 4.4.4.4.4=45
b) 3.3.3.5.5.5=15.15.15=153