Home > Numbers
| 9-ending numbers (Posted on 2019-04-29) |
 |
A and B are two positive numbers that end in 9. Prove that A2-B2 is divisible by 40.
Comments: (
You must be logged in to post comments.)
|
|
Please log in:
Forums (1)
Newest Problems
Random Problem
FAQ |
About This Site
Site Statistics
New Comments (14)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On
Chatterbox:
|
