Discriminant
X2-11X+10=0
81
12X2-4X-120=0
-3 10/3
6X2-3X-108=0
a=6 b=-3 c=-108
X2+2X-63=0
-9 7
X2+22X+120=0
4
24X2-54X-33=0
11/4 -1/2
20X2-X-30=0
a=20 b=-1 c=-30
X2-9X+8=0
8 1
12X2+15X-63=0
3249
X2+12X+11=0
-1 -11
X2-15X+44=0
a=1 b=-15 c=44
X2+9X -22=0
-11 2
12X2-4X-120=0
5776
X2+3X-88=0
-11 8
X2+2X-63=0
a=1 b=2 c=-63
X2+X -72=0
-9 8
20X2-22X-12=0
1444
X2+6X-40=0
4 -10
20X2-21X-5=0
a=20 b=-21 c=-5
X2-15+44=0
4 11