I keep on getting these wrong and I don't know what am I doing wrong for these problems:
1. 1/3ln3 + 2ln3
I first moved 1/3 and the equation becomes ln3^1/3 + ln3^2, after that I combined them and it becomes ln3^7/3. And that last step is where I was marked wrong.
2. ln20 - ln5 - 2/3ln8
I boiled down to ln4 - ln4 and after that I wrote 1 as final answer. It was marked wrong but I thought subtraction in ln means division?