Série A
X2-X-6 =0
X2 +2X+2 =0
X2 +7X+6 =0
X2+8X+16 =0
Série C
X2-X-12 =0
X2 +3X+4 =0
X2+11X+30 =0
X2-8X+16 =0
Série
X2-4X-8 =0
X2 +2X+3 =0
X2+8X+12 =0
X2+6X+9 =0
Série D
X2-X-20 =0
X2 +3X+5 =0
X2-X+30 =0
X2-6X+9 =0