4 1 5 х 2 1 7 July 8, 2019 16 32 64 128 4 1 5 x 2 1 7 4 1 5 2 1 7 4 1 5 times 2 1 7 4 1 5 x 2 6 7 4 1 5 x 3 2 7 2 1 3 х 1 4 5 х 1 4 7 1 4 5 x 2 7 10 1 4+х 1 5 5-2х 2 2 1/2 х 4 - 5 1/4
