x2
x
=0
-8x2+10x
-8x2+10x-3=0
-8x2+10x-2=0
-8x2+10x+3=0
-8x2+10x+7=0
-8x2+10x+12=0
-8x2+10x+18=0
-3
-2
3
7
12
18