Guess and check to find two factors of -28 and whose sum is 3. List all the factors and the sum of the factors

Question

I've been on this question for like 1 hour now, i think the answer is one but I dont know, help me someone please

Answer 1

7 and -4 is the correct pair.

Other pairs:

28 and -1 have sum 27
14 and -2 have sum12
7 and -4 have sum 3
4 and -7 have sum -3
2 and -14 have sum -12
1 and -28 have sum -27

Answer 2

-28

1; -28 -27
2;-14 -12
4;-7 -3
7;-4 3 answer
14;-2 12

28;-1 27

Answer 3

one pair would be +7 and -4;
all factors of 28 are.. 1,2,4,7,14,28.
so there is only one pair which has this sum of +3.

Answer 4

-4 and 7
only correct answer