There are no real numbers that satisfy the requirements. The solutions are: 0.5*[24 - i*sqrt(612)] = 12 - 12.3693i and 0.5*[24 + i*sqrt(612)] = 12 + 12.3693i where i is the imaginary square root of -1.
8
-166
78
21
-1
-1
The numbers are: 80 and -20
6 and -2
-16 and 9
13
What to number multiple to get 48 but add to get 13
12