Respostas

2014-05-22T18:59:40-03:00

-b+/-^b²-4ac / 2a
-1+/-^1²-4*1*-4160/2*1
-1+/-^1+16640 / 2
-1+/-129 / 2
-1+129 /2 = 64
-1-129 / 2 = -65

R = {64,-65}