Onze et quatorze. And if you don't get that you should not be so parochial!
The two numbers that add to give you 25 and multiply to give you 26 are 24 and 1. When you add 24 and 1, you get 25, and when you multiply them, you get 26.
25
22 Add the numbers, then divide by the number of numbers (in this case 5).
-29
-287
119
The numbers that multiply to -125 and add to -20 are -25 and 5. When you multiply -25 and 5, you get -125, and when you add them together, you get -20. Thus, -25 and 5 are the correct pair of numbers.
100+25+25 = 150
25
The numbers are 4 and 25
125
The two numbers that multiply to make 25 and add to make 35 are 25 and 10. This is because 25 x 10 = 250 and 25 + 10 = 35. These two numbers satisfy both conditions simultaneously.