Respuestas

2013-08-05T19:25:31+02:00
6^2= 36 = 9 
66^2= 4356 = 18
666^2= 443556 = 27
6666^2= 44435556 = 36
(666.....6666)^2 = 4..44 3 55...55 6
   666 cifras         665ci.  665 ci.    
4*665 + 3 + 5*665 + 6
2660 + 3 + 3325 + 6 = 5994