I'm not sure if I got these problems right. Can someone help me?
1. write "ln5" as a multiple of a common logarithm.
2. write "ln(x^2-1)/x^3)" as a sum, difference and/or constant multiples of logarithms. I got "ln(x^2-1)-3lnx" for this.
3. Simplify "log(9/300)". I got "log3"
4. Simplify -8+e^(ln(x^3)). I have no idea how to solve this one
I'll really appreciate it if someone can answer these questions. Thanks!