Answer:
The expression is 2k + 4.
Step-by-step explanation:
You have to collect like-terms :
(8k + 9) - (6k + 5)
= 8k + 9 - 6k - 5
= 2k + 4
ANSWER :
14x-x^2 = 33
x(14-x) = 33
14x-(x)^2 = 33