Answer:
9) A
10) B
11) A
12) D
13) C
14) A
15) C
16) D
17) E (not sure, can't see full choice)
18) B
19) C
Explanation:
Hope this is what you're looking for friend :)
Factor : a^2 - 10a + 21.
=
( a - 3 ) ( a - 7 )
Answer:
can you please write it differently cuz its kinda confusing