0 5 log x 2 x 2 10x 25 July 8, 2019 16 32 64 128 (5 * 0 2 ^ (x + 0 5) - 0 2 * 5 ^ (x + 0 5))(0 5 * log0 2 (x + 0 5) - 2 * log5 (x + 0 5)) 0