80
-1
-82
The two numbers that multiply to 80 and add to -18 are -10 and -8. This is because (-10) × (-8) = 80 and (-10) + (-8) = -18.
-42
101
-1
They are 40 and 40
-82
1660
There aren't two whole numbers that satisfy those conditions. If that was -80, you could use 8 and -10.
1680
Those two numbers would be 80 and 40. 80*40=3200 80+40=120
-42
-78
-96
101
20