9 x 3 x 1 4 0 July 8, 2019 16 32 64 128 9 x 1 9 4 * 3 x 10 9 27 0 0 25 x 4 )= 9 9 3 x 1 4x − 9 4 x − 1 3 x 1 ≤ 0 3 x 3 = 9 9 x 8 = 9 3/4 x 3 9 x 13/4
