1 5 9 х 2 4 7 July 8, 2019 16 32 64 128 1 5 9 * 2 4 7 1 1 3 5 2 9 х 4 7 1 7 9 х 5 4 9 2 5 8 1 4/9 х =5 2 1 4/9•х=5 2 5 9 - х= - 4 1
