X 1 5 2 4 25 July 8, 2019 16 32 64 128 1 16 25 x )- 4 5 4 2 25 3 5 2 x 1 3 4 25 3 4 2 x 1 5 2 0 25 3/4 - 2 x + 1/5 mũ 2 = 0 25 2 5 3 x mũ 2 1 5 4 25 (1 5) ^ x 2 25
