7 9 x 6 2 3 July 8, 2019 16 32 64 128 7 x 6 )= 9 3x 2 7 * 9 x 2 3x 1 5 * 6 7 х 6 )= 9 3х 2 11 9 7 6 x 2 1 3 7 5 10 9 x 6 3 2 7 6 1 9 x 3 2 11 9 7 phần 6 x 2 1 3 7 x 2 y 9 6 x 7 y 3 5 7 2 x 3 6 9 4x 8 9 10 x 6 7 x 2 1 3