The numbers are: -1 and -20
The numbers are: 20 and -48
-1597
The factor pairs of 200 are (200,1)(100,2)(50,4)(40,5)(25,8)(20,10) None of them have a sum or difference of 20. Factors of 200 that add to 20 are 10 and 10.
14, 20 or 5, 56 or 10, 28
The numbers are: -1 and -20
83
360
20
The numbers are: 20 and -48
64
18
104
-1597
104
56
-262