77
xy = 60
x + y = -17
y = -17-x
x(-17-x) = 60
-17x -x^2 -60 = 0
x^2 +17x + 60 = 0
(x+12)(X+5) = 0
x = -12
y = -5
80
205
negative 3 and positive 4
11
21
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
14
79
80
301
205
negative 3 and positive 4
63
-5
57
-10 and 4,