Where did the 2 come from in your last line of working?
I have been given the question differentiate the following equation logarithmically:
However, I don't yet understand factorising very well, and the answer given for this question has been factorised so I can't compare it with my own answer.
I took the following steps to work this out:
If someone can verify wherether this is correct or not, and tell me how if it's not, that would really useful.