Question

Can someone help me with these last 2

Answer 1

Explanation:

n+4-9-5n

n-5n+4-9

-4n-5

It is composite because it can be divided by 2 and 4.

Answer 2

18).

`n + 4 - 9 - 5n \\ = (n - 5n) + (4 - 9) \\ = - 4n - 5 \\ = - (4n + 5)`

20).

It is a composite number, because it had more than two factors