2 k 5 )= 3 k 10 July 8, 2019 16 32 64 128 2 5 k 3 5 1 10 k 5 2 k 4 )= 5 k 3 )+ 10 K 2 )( k 3 )( k 5 )( k 10 )+ 375 K-2/5k=4 5