7 8 x 7 0 July 8, 2019 16 32 64 128 49 x 8 * 7 x 7 0 7 8 x 0 2 7 8 x 0 4 7 2x 8 * 7 x 7 0 7 8 x 0 3 7 8 x 0 1 7 8 х 0 26 7 2x 1 8 * 7 x 1 0 7 8 x 0 5 7 8 x 0 6 7 8 x 0 6 bằng bao nhiêu