Explanation:
# if the question is the multiplications(product) that can give us -80. we can indicate many numbers.
for example:1,40*-2=-80
2,20*-4=-80
3,-10*8=-80 etc...........
,the product of negative &positive is always negative.
# the adds(sum) that can give us -2 are also so many numbers.&the numbers must be negative(-)& positive(+) &also must have a difference of 2 numbers between the negative number &positive number.
for example:1,0-2=-2
2,2-4=-2
3,-100+98=-2 etc............
i hope it is clear.