Question

Ex 5 va ROOOG.
Dau coroana

Answer 1

Răspuns:

Explicație pas cu pas:

3ab=3(10a+b)=30a+3b... se scrie in baza 10

deci 30a+3b=10d+b.→30a+2b=10d/:2→15a+b=5d

10a+b+10d+b=80

10a+ 10d+2b=80/:2

5a +5d+b=40

15a+b=5d→inlocuim in rel de mai sus....obtinem...5a+15a+b+b=40...20a+2b=40/:2.....10a+b=20.....ab=20....a=2, b=0

3*20=db....60=db...d=6

abbd=a006