Question

1 daca axb=45iar cxa=35 calculati:
a)ax(b+c)_:8;
b)ax(b-c):2;
2 daca axb=36 iar cxa=12 calculati :
a( ax(b+c):6;
b(ax(b-c):4.
folositi proprietatile inmultirii.

Answer 1

1.a) ax(b+c):8 = (axb+axc):8 = (45+35):8 = 80:8 = 10
b) ax(b-c):2 = (axb-axc):2 = (45-35):2 = 10:2 = 5
2.a) ax(b+c):6 = (axb+axc):6 = (36+12):6 = 48:6 = 8
b) ax(b-c):4 = (axb-axc):4 = (36-12):4 = 24:4 = 6 
Sper ca ti-am fost de ajutor :)