Răspunsuri

2014-04-15T18:16:21+03:00
N=1 => x1=1-1=0
n=2 => x2=4-2=2
n=3 => x3=9-3=6
n=4 => x4=16-4=12
n=5 => x5=25-5=20
n=6 => x6=36-6=30