2 · log(a - 2b) = log(a - 2b)2 log(a) + log(b) = log(ab)
2 * log (a -2b) = log (a) + log (b). ---> log(a - 2b)2 = log(ab)
---> (a - 2b)2 = ab
---> a2 - 4ab + 4b2 = ab
---> a2 - 5ab + 4b2 = 0
---> (a - 4b)(a - b) = 0
---> Either a - 4b = 0 or a - b = 0
---> a = 4b a = b
---> a/b = 4 a/b = 1