Answer:
10
Step-by-step explanation:
itsss 10 :))))))))))>))))))))
X^2-5x+5x-25 (multiply (x-5) with (x+5))
X^2-25 ( -5x+5x =0)
Answer:
A. 
Step-by-step explanation:
The third order polynomial is factored herein:


Which represents answer A.
20,23,26,29,32,35,38,41,44,47,50,53,56,59,62,65,68,71,74,77,80
The correct answer will be A and B
The last three is wrong based on the numbers