x2
x
=0
-3x2+13x
-3x2+13x-14=0
-3x2+13x-12=0
-3x2+13x-10=0
-3x2+13x-4=0
-3x2+13x+10=0
-3x2+13x+16=0
-14
-12
-10
-4
10
16