Hi, log(1-2x)-2logx = 1-log(2-5x) log(1-2x)-2logx + log(2-5x) = 1 log(1-2x)(2-5x)/x^2 = 1 (1-2x)(2-5x)/x^2 = 10 (1-2x)(2-5x) = 10x^2 2 - 9x + 10x^2 = 10x^2 2 = 9x 2/9 = x