9 2 2 3 x 7 4 July 8, 2019 16 32 64 128 9 2 2 3 х 2 1 7 х 21 46 2 3 x 4 9 1 2 3 7 x 0 8 2 4 2 x 3 3 7 9 9 2 2 3 x 7 4 5 4 9- 2 3/7 2 9 + (-7 4) 4 2*(-7)-9 3
