Oh, what a happy little math problem we have here! Let's think about this together. The numbers that multiply to 20 and add up to -10 are -2 and -8. When you multiply them, you get 20, and when you add them, you get -10. Isn't that just a lovely solution? Happy math-ing, my friend!
There are 100 cents in a dollar, so 2,000 cents makes 20 dollars.
The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The factors 1+3+5+10=19, 1+2+6+10=19, 1+3+15=19, and 3+6+10= 19.
nitrogen phosphorus potassium
-20
20
120
-10 and -4
(20 - √229) ≈ 4.867 and (20 + √229) ≈ 35.133
-27
14
12
107
120
-16
5, 10, 15, 20 and 25
110
24 and 5