Please help with question #1 only, please have solution similar to the format used in question #2. And #3

Find the interval of convergence of En=1(-1)" -3 73 ( x + 2 ) n 2.) Find the radius of convergence and the interval of convergence 2) En=1(-1)" (2x - 1)n lim / (2x-1)n+1 169 ( 2X- 1) " ( 2X -1 ) (n+ 1 ) 6 " + 1 ( 2 x - jul = lim 1zoo ( n + 1) 6".6 (2x - 1 )" F lim n 2X - 1 2 1 47to htl 1 6 12x-1126 R = 3 X-2