21
Multiply: 0.43845 x 4.56155 = 2 Add 0.43845 + 4.56155 = 5
40
The pattern is multiply by -1, add 5, repeat. The next three numbers are: -7, -2, 2
12/5 or 2 and 2/5
7
There are no two real numbers that do, but the complex numbers (2 + i) and (2 - i) will.If you want two numbers that multiply to negative 5 and add to positive 4 then: -1 and 5If you want two numbers that multiply to negative 5 and add to negative 4 then: 1 and -5
0
11
-13
-5 and +3
5/2
-10 and 15