Question 686857
<img src="http://latex.codecogs.com/gif.latex?\LARGE \log_{3}(40) - \log_{3}(10)" title="X" />




<img src="http://latex.codecogs.com/gif.latex?\LARGE \log_{3}\left(\frac{40}{10}\right)" title="X" />




<img src="http://latex.codecogs.com/gif.latex?\LARGE \log_{3}(4)" title="X" />




So, <img src="http://latex.codecogs.com/gif.latex?\LARGE \log_{3}(40) - \log_{3}(10) = \log_{3}(4)" title="X" />