n+1 (3) (4k³-1)=4k³ - 1 n+1 k=1 n+1 = 4{ ½ (n + 1)(n+1) + 1]}] ² −(n+1) n k=1 [ k=¹0&# 110.1=10.0+I =(n+1){(n+1)(n+2)²-1} TU! =(n+1){(n+1)(n²+4n+4)-1} =(n+1)(n³+5n²+8n+3) Halk n Jet MARICERI THIS