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