2.(x + 6).(3x - 2) = 0
In a multiplication if one of the terms is equal to 0, everything is equal to 0
So:
If x + 6 = 0, we have a root
x + 6 = 0
x = -6
If 3x - 2 =0, we have a root
3x - 2 = 0
3x = 2
x = 2/3
So our least root is -6 and the greatest is 2/3
