Well, isn't that a happy little puzzle we have here! To find two numbers that add up to 28 and multiply to -48, we can think of factors. The numbers we're looking for are 16 and -3. They add up to 13 and multiply to -48. Just remember, there are always happy little solutions waiting to be discovered!
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,4
-35
74
-46
-190
14
The numbers are 3 and 25
-18 and -10
-31
95
50
-291