Quantcast
Channel: GMAT Club Forum - latest posts
Viewing all articles
Browse latest Browse all 420581

Re: For positive integers x and y, which of the following can

$
0
0
The question is asking "Which of these equations could equal a perfect square?"

If you're familiar with number properties regarding perfect squares, you should be able to rule out everything except the correct answer.

the fact that 5^2 - 4^2 is equal to 3^2 should be a pattern that you have memorized (esp. with regards to right triangles)
also, another one you might see often is some form of 13^2-5^2=12^2

Viewing all articles
Browse latest Browse all 420581

Trending Articles



<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>