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daca a ×b =45,iar c ×a =45,calculati respectand ordinea efectiluarii operatiilor:a×(b+c)+60= ?

Răspuns :

* ⇒ operatia de inmultire

a * b = 45
c * a = 45

a * ( b + c ) + 60 = a * b + a * c + 60 = 45 + 45 + 60 = 90 + 60 = 150
45+45+60=90+60=150
am inmultit axb+axc+60