The two numbers that multiply to -11 and add to -5 are -11 and 1. When you multiply -11 and 1, the result is -11. When you add them together, -11 + 1 equals -10, not -5. Therefore, there are no two real numbers that satisfy both conditions.
7
-11
-10
11
4 and 11.
9 and 11.
-5 and -1
1
nothing
9 ones and a 5
4 1
-5 and -10