http://mathforum.org/kb List of forum topics en http://mathforum.org/kb/thread.jspa?messageID=7903284&tstart=0#7903284 Joe,
The "n" at the end is the final integer value, but it starts with 0.
In fact, if n = 0 the left side ends with 2*(-7)^0 = 2*1 = 2,]]> Oct 9, 2012 8:44:15 PM Oct 9, 2012 8:44:15 PM benb 0 http://mathforum.org/kb/thread.jspa?messageID=7903158&tstart=0#7903158 Oct 9, 2012 5:15:05 PM Oct 9, 2012 5:15:05 PM hp1702 0 http://mathforum.org/kb/thread.jspa?messageID=7902988&tstart=0#7902988
2-2*7 + 2 * 7^2 - ? + 2* (-7)^n = (1-(-7)^n+1)/4

I understand that I need to first solve this for P(0). What]]> Oct 9, 2012 11:12:30 AM Oct 9, 2012 11:12:30 AM JoeD 2