Answer:
2, -1
Explanation:
The 16 factors of -42 are
1, 2, 3, 6, 7, 14, 21, 42
-1, -2, -3, -6, -7, -14, -21, -42
The pair of factors that have a sum of 1 is
2 + (-1)
=1
3, -2 also
7, -6 also.
-6 and 7
-6 and 7 multiply to be -42.
When you add the two values: -6+7=1
Their sum is 1!
Hope this helps
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