I have to admit the factoring threw me for a bit. The last time I had to do something like this was over 20(!) years ago. Although it was gratifying to have th

I have to admit the factoring threw me for a bit. The last time I had to do something like this was over 20(!) years ago. Although it was gratifying to have the solution drift into mind after a while. What is sad is that I'm acutely aware that I no longer think as quickly as I did in my 20s.