The complex conjugate pair 1 ± 3.7417i where i is the imaginary square root of -1.
The numbers are: -5 and 3
-5 and +3
10
5 and -3
-5 and 3
3 and -5.
The two numbers you are looking for are -15 and 4. When you multiply -15 and 4, you get -60, and when you add them together, you get -13.
15
The two numbers are -2 and -15
-5 and -15 because -5 + -15 equals -5 - 15 which is -20 and -5 multiplied by -15 = 75 (two negatives multiply to make a positive)
31
23