-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)
The numbers are: -1 and -20
The two numbers that add to -8 and multiply to -20 are -10 and 2. This is because -10 + 2 = -8 and -10 * 2 = -20. These numbers satisfy both conditions simultaneously.
83
360
20
The numbers are: 20 and -48
-1597
64
104
-262
736
1660