Answer:
see explanation
Step-by-step explanation:
Consider the factors of - 48 which also sum to give + 13
The factors of - 48 are
± 1, ± 2, ± 3, ± 4, ± 6, ± 8, ± 12, ± 16, ± 24, ± 48
The required factors are + 16 and - 3, since
16 × - 3 = - 48 and 16 - 3 = 13
