Answer:
The right answer is: (1,1,-3), (-1,-1,-3) and (-1,1,3) 
Step-by-step explanation:
We should find all the possible values for the three factors that will lead to the product of -3. 
Using the associative property for the first combination: 
(1x1)(-3) equal to -3 
We can use this rule for the last combination as well: 
(1x(-1)(3)) equal to -3 
And for the second combination, knowing that – per – equal to positive 
(-1)*(-1)*(-3) equal to -3