Another question that I need help with quick response would

Another question that I need help with, quick response would be highly appreciated.

Solution

I am giving some idea

z transform for impulse function is \"1\'\'

and the partial fraction s in the form of a/(z-a) then the inverse z transform will be in the form of a^n u(n).

the above mentioned will be useful for solving the problem. if u want solution please send the images correctly.......

thank you