Question 153463
<pre>
How do you Combine logs?

Log(base5)(x^2-1)-Log(base5)(x-1) 

The person who responded seems to have "LOST" the base.

Log(base5)(x^2-1)-Log(base5)(x-1)
{{{log (5, (x^2 - 1)) - log(5, (x - 1))}}} = {{{log (5, ((x^2 - 1))/((x - 1)))}}} = {{{log (5, ((x - 1)(x + 1))/((x - 1)))}}} = {{{log (5, (cross((x - 1))(x + 1))/(cross((x - 1))))}}} = {{{highlight(log (5, (x + 1)))}}}</pre>