Simplify:

Question

1. 2log10^5+log10^4
2. 2log3^6-log3^4
3. log4^40-log4^5
4. log4^3-log4^48

I need to see all of the steps.
Thanks

Answer 1

You need to review the rules:

log a^n= n log a

log4^40 -log4^5
40log4-5log3=35log4

all of these are the same skill.