There are infinitely many possible answers.
The simplest is 1 times 42.
Other examples:
10 * 4.2
-3 * -14
42 and 42
-61
122
43
There are no two numbers that multiply to 42 and add up to 8. The pairs of factors of 42, such as (1, 42), (2, 21), (3, 14), and (6, 7), do not sum to 8. Therefore, it is not possible to find such numbers.
42 and 42
1680
-61
14, 28, 42 and so on.
-3 and -14
55
-41
65
12 x 2 = 42 14 x 3 = 42 7 x 6 = 42 6 x 7 = 42 2 x 12 = 42 3 x 14 = 42
122
28, 35, 42, 49, 56.
43