Question

ab*aba=abab

Answer 1

ab x aba = abab

=> ab x aba = ab x 100 + ab

=> ab x aba = ab x 101

=> aba = 101

=> ab = 10

Answer 2

ab*aba=abab 

= 10 x 101 = 1010 

Vậy ab = 10 

và aba = 101 

ab x aba = 10 x 101 = 1010 

Answer 3

ab x aba = abab

=> ab x aba = ab x 10 + ab

=> ab x aba = ab x 101

=>aba = 101

=> ab = 10

Answer 4

ab x aba = abab

ab x aba = ab x 100 + ab x 1

ab x aba = ab x ( 100 + 1 )

ab x aba = ab x101

=> aba = 101

=> ab 10