2,3^7•2,3^2:2,3^6=2,3^9:2,3^6=2,3^3
4,5^17:4,5^3^2•4,5^3:(4,5^2)^5= 4,5^17:4,5^9•4,5^3:4,5^10= 4,5^8•4,5^3:4,5^10=4,5^11:4,5^10= 4,5^1=4,5
^ =la puterea
