Question

cum se rezolva ex. 12

Answer 1

a) 5* 5 - 10 = 25-10= 15

b)3b+3c = 3(b+c) = 3* 6 = 18

c)ab + ac = a(b + c) = 5*6 = 30

d) nu se vede bine,dar ai inteles tu idea