15
Multiply the numbers ignoring the signs and then add a negative sign.
301
Factors multiply. The same set of numbers won't add up to both 140 and 240, but 120 and 20 are factors of 240 that total 140.
79
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
15
Multiply the numbers ignoring the signs and then add a negative sign.
7 and -8
80
22
negative 3 and positive 4
301
205
-5
57
-10 and 4,