ex.11
-daca nu intelegeti-
Calculati,utilizand factorul comun:12•13+12•15-12•27
![Ex11 Daca Nu IntelegetiCalculatiutilizand Factorul Comun121312151227 class=](https://ro-static.z-dn.net/files/d62/19a6562cc71e52761b18f61f4dc51b4d.jpg)