Question

Which two numbers add up to negative 17 and multiply to 30

Answer 1

The two numbers that add up to -17 and multiply to 30, is 
-15 and -2.

-15*-2=30
-15+-2=-17
:P

Answer 2

15 & 2
if you add the two they make -17 and if you multiply they 30

         / +    +   \
              -
        -----------