16 x 1 2 25 0 July 8, 2019 16 32 64 128 Tìm x 16 x 1 2 25 0 16x x 1 2 25 0 Tìm x biết 16 x 1 2 25 0 16x 2 1 25 0 16 ×2=8 16 16 x 16 x 2 1/2
