Well first think this... There's going to be a negative and a positive factor.
(+)*(-)=(-)
We know that the positive is going to be bigger because the 12 is not negative.
The only factors that make 8 are 2*4=8 and 1*8=8.
So it isn't possible to multiply -8 and add to 12.
20
-12
-92
12
20
No integers. It works the other way around. 6 and 2 multiply to 12, add to 8.
The two numbers that multiply to -60 and add to 8 are 12 and -5. This is because 12 * (-5) equals -60, and 12 + (-5) equals 8.
-16
8 and 2
-8
168
57