Answer:
1,-1,2,-2,3,-3,6,-6, 1/3, -1/3, 2/3, -2/3
Step-by-step explanation:
Factors of the constant which are:
+1,-1,+2,-2,+3,-3,+6,-6
Also, these divided by the factors of the leading coefficient (3 in this case)
Factors of 3 are 1 & 3
Dividing by 1 will give the same values
Dividing by 3:
1/3,-1/3,2/3,-2/3,3/3,-3/3,6/3,-6/3
1/3,-1/3,2/3,-2/3,1,-1,2,-2
Distinct possibilities:
1,-1,2,-2,3,-3,6,-6, 1/3, -1/3, 2/3, -2/3