Please put the final answer in a square. Thanks!

Hint for next exercises: a) Zxn) -x() for a certain Ro.c Zlx(n-1]} = z-k(z) where: new R.O.C.= R.O.cn Izl>0 If Z{x(n]}=X(z) for a certain RO.C Z(xn1)zX(z) where: new RO.C-R.O.Cn b) Problem #2 Fill Answer Blanks with your final answer in order to get credit. Given x[n] 0.9"-3uln-3] Find X(z) Answer: X(z)- with R.O.C