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
a * b = 45
c * a = 45
a * ( b + c ) + 60 = a * b + a * c + 60 = 45 + 45 + 60 = 90 + 60 = 150