It is: -6 and -6
-16
23
-12 and +5
The factor pairs of 36 are (36, 1) (18, 2) (12, 3) (9, 4) (6, 6) None of them add up to 9. If that was -36, you could use 12 and -3
The factor pairs of 36 are (36,1)(18,2)(12,3)(9,4) Even considering their negative counterparts, none of them adds up to -60.
19
-40
-27
164
-36
144
it is not possible.