X 9 729 July 8, 2019 16 32 64 128 9 х 729 9 x 1 729 9 x 5 )= 729 7290 x 9 X 8 9 729 9 x 3 729 Solve 1 9 x 729 7294 x 9 X mũ 8 phần 9 729