posted by kevin on .
use the properties of logarithms to write the expression as a sum or difference of logarithms or multiples of logarithms.
show your work
Assuming x,y AND z are positive use properties of logariths to write the expression as a single logarithm
4 log(xy)-3 log (yz)
Use change of base to evaluate the logarithm
log tiny 8 175
log small 3 X
there are 3 log properties you will need for the first four.
1. LogA + logB = log(AB)
2. logA - logB = log(A/B)
3. nlogA = log(A^n)
= log 175/ log 8 , remember when no base is written, assume base 10
= 2.4837 appr.