1290
15
There are no two real numbers that do. Using complex numbers, these two do: (-3/2 + i√151/2) & (-3/2 - i√151/2) Two numbers that add to -3 and multiply to -40 are -8 & 5 Two numbers that add to 3 and multiply to -40 are 8 & -5 Two complex numbers that add to 3 and multiply to 40 are (3/2 + i√151/2) & (3/2 - i√151/2)
51
-10 and -3
-1 and -120
-22
199
The numbers are: -5 and 3
-5 and +3
That depends whether you want to add the numbers, to multiply them, or what.
221
5 and -3
-5 and 3
Multiply the number by 100 and add a percentage sign.
-17
-1
302