a/ aaa : a = a.111:a = 111
b/ abab : ab = ab.101 :ab = 101
c/ abcabc : abc = abc . 1001 : abc = 1001
a) aaa : a
aaa = a . 100 + a . 10 + a . 1
aaa = a . (100 + 10 + 1)
aaa = a . 111
=> aaa : a = 111
b) abab : ab
abab = ab00 + ab
abab = ab . 100 + ab . 1
abab = ab . (100 + 1)
abab = ab . 101
=> abab : ab = 101
c) abcabc : abc
abcabc = abc000 + abc
abcabc = abc . 1000 + abc . 1
abcabc = abc . (1000 + 1)
abcabc = abc . 1001
=> abcabc : abc = 1001
aaa : a = 111
ví dụ : 222 : 2 = 111
abab : ab = 101
ví dụ : 1212 : 12 = 101
abcabc : abc = 1001
ví dụ : 123123 : 123 = 1001
a/ aaa : a = 111
b/ abab : ab = 101
c/ abcabc: abc = 1001
a/ aaa : a = a.111:a = 111
b/ abab : ab = ab.101 :ab = 101
c/ abcabc : abc = abc . 1001 : abc = 1001 :))