What multiplies to -30 and adds up to 1?

Answer 1

-29

Answer 2

First you find all factors of -30:

1 & -30, 2 & -15, 3 & -10, 5 & -6, 6 & -5, 10 & -3, 15 & -2, 30 & -1

Then you add each pair together:

1 - 30 = -29

2 - 15 = -13

3 - 10 = -7

5 - 6 = -1

6 - 5 = 1

10 - 3 = 7

15 - 2 = 13

30 - 1 = 29

And find that the answer is 6 & -5.

Answer 3

6 and -5