1 25 x 3 8 July 8, 2019 16 32 64 128 8 25 x 3 1 6 9 10 1 3 x 3.14 x 25 x 8 25 1 và 1 2 0 5 x 3 8 1 3 x pi x 25 x 8 8xy 22y 12x 25 1 x 3 25 x 3 2 1 5x 1 5x 8 ( 25 5 x 9 3 ) / 8 1 25 1 2 x 8 4 3 1 25 x 8 1 25 x 3
