9x 2 8x 1 0 July 8, 2019 16 32 64 128 9x 4 8x 2 1 0 9x 5x 1 2 8x 7x 5 9x 0 9x 5x 1 2 8x 7x 5 9x 0 comprobacion 9 x 8 =