Answer:
-3 - 2 is a possible combination.
Given that we must use 2 negative numbers, we'll do some tests:
If you wish the result to be -5 after a SUM, your numbers could be -10 + 5, but +5 is not a negative number
If you wish the result to be -5 after a SUBTRACTION, you numbers could be -3 -2, and both of these numbers are negative.
If you wish the result to be -5 after a MULTIPLICATION, your numbers could be -1 * 5, but 5 is not a negative number.
If you wish the result to be -5 after a DIVISION, your numbers could be -10 / 2, but 2 is not a negative number.
→ The only possible combination of 2 negative numbers would be in a subtraction.
Hope it helped,
BiologiaMagister