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