1 5 4 5 x 0 75 July 8, 2019 16 32 64 128 1 1 5 4 phần 5 chia x 0 75 5 1 4 x 0 75 50 5 4 x 0 75 x 1 5 x 2 mũ 2 0 75 / 1 5 = 5 / x 1 5 × 0 4
