That sounds like two different questions. The factors for -144 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144 and their negatives. The prime factors are 2 and 3. -16 and 9 add up to -7.
They are: 49+144 = 193
what two factors of -21 add up to -6
119
-3 and 16.
That sounds like two different questions. The factors for -144 are 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144 and their negatives. The prime factors are 2 and 3. -16 and 9 add up to -7.
The two square numbers that add up to 225 are 144+81 = 225
They are: 49+144 = 193
Factors are multiplied, not added. The question needs to be something like, "Which two factors of thirty add up to 11?" The answer would then be 5 and 6.
-134
what two factors of -21 add up to -6
-144
2, 4, 6, 10, 12, 20, 30, 60 add up to 144.
-32
119
9 and -3
-3 and 16.