👤

daca axb=18 si axc=15 calculeaza ax(b+c)x3

Răspuns :

a=3 , b=6 iar c=5 ,3x(6+5)x3 =6x11=66
ax(b+c)x3=(axb+axc)x3 (folosim asociativitatea invers)
axb=18,axc=15
(18+15)x3=33x3=99