Question

3 dau coroana va rog urgent

Answer 1

^-la puterev,*-inmultire
2^15 *2^37=2^15+37=2^52
4^25=2^25*2=2^50
(3^5)^7=3^5*7=3^35
9^17=(3^2)^17=3^2*17=3^34
2^52 : 2^50+3^35:3^34=2^(52-50)+3^(35-34)=2^2+3^1=7

7-1^2015=7-1=6