How do you simplify logarithm problems with different bases?
Problem is: 2log4(9) - log2(3)
Thank you in advance.
The Purplemath Forums
Helping students gain understanding and self-confidence in algebra.
Logarithm problem, help please 
2 posts
• Page 1 of 1
Logarithm problem, help please
by Rico. on Tue Feb 05, 2013 4:10 am
- Rico.
- Posts: 4
- Joined: Tue Feb 05, 2013 4:02 am
Re: Logarithm problem, help please 
by jg.allinsymbols on Tue Feb 05, 2013 5:32 am
Use the Change-of-Base formula. Put the logarithm into the base that you want. The derivation is found in Intermediate Algebra textbooks.
Given a logarithm function in base a, if you want the logarithm function in base b, here is how:
=\frac{log_b(n)}{log_b(a)})
Given a logarithm function in base a, if you want the logarithm function in base b, here is how:
- jg.allinsymbols
- Posts: 71
- Joined: Sat Dec 29, 2012 2:42 am
2 posts
• Page 1 of 1