X 0 25 5 6 July 8, 2019 16 32 64 128 0 4 x 1 =( 6 25 6x 5 Tìm x biết x 0 25 5 6 25 x 5 6 0 20 X 0 5 x 0 25 x 94 689 11 12 x 0 25 5 6 0 25 75 x 2 5 6 5 6 1 6 x 0 25 2 75 25 x 0 = 25 ^ x - 6 * 5 ^ x + 5 = 0