78
24 and 3
The numbers that multiply to 72 and add to negative 16 are -8 and -9. This is because (-8) × (-9) = 72 and (-8) + (-9) = -17. Therefore, the correct pairs are -8 and -9.
-86
6 + 12 = 18 6 * 12 = 72
-73
1308
60
86
{1, 53 and 72 lots of -1} ie 1*53*-1*-1*-1 ... *-1
A negative and a positive number will multiply to a negative number. Other than that, -9 and -8 will satisfy your conditions.
-9 x -8 = +72 negative x negative = positive
How about: 8*9 = 72 as one example