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scrie toate numerele de forma:a)x27,b)6aa

Răspuns :

X27= x poate fi: 1,2,3,4,5,6,7,8,9
6aa= a poate fii: 1,2,3,4,5,6,7,8,9
x27:
x=1,2,3,4,5,6,7,8,9
x27=127,227,327,427,527,627,727,827,927


6aa:
a=0,1,2,3,4,5,6,7,8,9,
6aa= 600,611,622,633,644,655,666,677,688,699