Răspuns :
abab:ab =
=(1000a+100b+10a+b):(10a+b)=
(1010a+101b):(10a+b)=101(10a+b):(10a+b)=101
=(1000a+100b+10a+b):(10a+b)=
(1010a+101b):(10a+b)=101(10a+b):(10a+b)=101
abab I ab
I ---------------------------------
- ab 101
----------------
= = a
ab
- ab
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= =
I ---------------------------------
- ab 101
----------------
= = a
ab
- ab
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= =