Wee Yong Geng, Eldric's answer to Tara's Secondary 4 A Maths Singapore question.
Secondary 4 students do not learn ln |x - 2|. They only learn the integral of 1/x for x > 0, which they learn as ln (x - 2) for x > 0. You need to present your workings in a manner suitable for secondary school students, even though this can be given as additional knowledge.