A person purchased 5k + 2 items for a total cost of 35k 2 + 29k + 6. Find the average cost per item of this purchase.

(35k^2+29k+6) / (5k+2)

= (5k+2) (7k+3) / (5k+2) [factoring dividend]

=7k+3 [elliminating 5k+2]

The average cost is 7k+3

2. (8k^2+2k-3) / (4k+3)

= (4k+3) (2k-1) / (4k+3) [factoring dividend]

=2k-1[elliminating 4k+3]

Therefore he purchased 2k-1 items

thats the right answer