👤

Ajutor ! E super,super urgent !

Ajutor E Supersuper Urgent class=

Răspuns :

ab-ba numere = 10a+b-10b-a=9(a-b)

(ab- ba numere)²= (9(a-b))²=(9*3)²=9²*3²=81*9=729
as urgent  as that!