21
The two numbers that multiply to -30 and add up to 13 are 15 and -2. When you multiply 15 and -2, you get -30, and when you add them together, you get 13.
-23
The two numbers that multiply to 810 and add to -63 are -27 and -30. This is because -27 × -30 = 810 and -27 + -30 = -57.
5300
962
The two numbers are -2 and -15
61
260
-23
-10 and -3
42
-17
26
-117
5300
13
43