x2
x
=0
-6x2+11x
-6x2+11x-5=0
-6x2+11x-4=0
-6x2+11x-3=0
-6x2+11x+2=0
-6x2+11x+7=0
-6x2+11x+10=0
-6x2+11x+17=0
-6x2+11x+21=0
-5
-4
-3
2
7
10
17
21