x2
x
=0
-8x2+14x
-8x2+14x-6=0
-8x2+14x-5=0
-8x2+14x-3=0
-8x2+14x+4=0
-8x2+14x+9=0
-8x2+14x+15=0
-8x2+14x+22=0
-6
-5
-3
4
9
15
22