-936
There are no such numbers. The only two numbers that sum to 12 and whose product is -84 are irrational, and so cannot be considered as factors of 84.
Assume we want to determine the integers that multiply to obtain -24.Here are the possible pairs:-1 and 241 and 242 and -12-2 and 123 and -8-3 and 84 and -66 and -4
The median is the middle value or, in your case, where there is an even amount of numbers, the average of the two middle numbers. This means the median of 84 and 85 is the same as the average, which is 84.5 (84 and 85 divided by 2)
The numbers are 21 and 63.
-92
64
104
104
you could multiply 84 by 10 = 840 then multiply 84 by 2 = 168 add these two numbers = 1008
-936
101
1827
109
-95
-79
41 and 43