Well, isn't that a happy little math problem! To find two numbers that add up to -11 and multiply to -20, we can think of -15 and 4. They add up to -11 (-15 + 4 = -11) and multiply to -60 ( -15 * 4 = -60). Remember, there are many ways to approach a problem, just like there are many ways to paint a beautiful picture!
9 and 11.
-10
-11
7
26
20
-70
4 and 11.
-12.385165 and -1.614835
24
-1540
20