Last visit was: 23 Apr 2026, 14:22 It is currently 23 Apr 2026, 14:22
Home
Messages
Tests
Schools
Events
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
User avatar
Schachfreizeit
User avatar
Joined: 17 Nov 2022
Last visit: 02 Feb 2023
Posts: 110
Own Kudos:
8
Given Kudos: 8
Posts: 110
Kudos: 8
Square root of x^2-y^2=4 29 Dec 2022, 10:01
Kudos
Add Kudos
Bookmarks
Bookmark this Post
sorry for this easy question, but what do I get when I take the square root of the equation x^2-y^2=4?

Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 23 Apr 2026
Posts: 109,785
Own Kudos:
810,853
Given Kudos: 105,853
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,785
Kudos: 810,853
Square root of x^2-y^2=4 30 Dec 2022, 03:05
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Schachfreizeit
sorry for this easy question, but what do I get when I take the square root of the equation x^2-y^2=4?
Show more
________________________________________
\(\sqrt{x^2-y^2}=2\)
User avatar
Schachfreizeit
User avatar
Joined: 17 Nov 2022
Last visit: 02 Feb 2023
Posts: 110
Own Kudos:
8
 [1]
Given Kudos: 8
Posts: 110
Kudos: 8
 [1]
Square root of x^2-y^2=4 30 Dec 2022, 05:36
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
Schachfreizeit
sorry for this easy question, but what do I get when I take the square root of the equation x^2-y^2=4?
________________________________________
\(\sqrt{x^2-y^2}=2\)
Show more


thanks, and what is the square root of x^2-y^2?
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 23 Apr 2026
Posts: 109,785
Own Kudos:
810,853
Given Kudos: 105,853
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,785
Kudos: 810,853
Square root of x^2-y^2=4 30 Dec 2022, 08:37
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Schachfreizeit
Bunuel
Schachfreizeit
sorry for this easy question, but what do I get when I take the square root of the equation x^2-y^2=4?
________________________________________
\(\sqrt{x^2-y^2}=2\)


thanks, and what is the square root of x^2-y^2?
Show more
________________________________________

It cannot be simplified further...
User avatar
Schachfreizeit
User avatar
Joined: 17 Nov 2022
Last visit: 02 Feb 2023
Posts: 110
Own Kudos:
8
Given Kudos: 8
Posts: 110
Kudos: 8
Square root of x^2-y^2=4 31 Dec 2022, 05:13
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel
Schachfreizeit
sorry for this easy question, but what do I get when I take the square root of the equation x^2-y^2=4?
________________________________________
\(\sqrt{x^2-y^2}=2\)
Show more

doesn't it have to be +-2?
User avatar
CrackverbalGMAT
User avatar
Major Poster
Joined: 03 Oct 2013
Last visit: 22 Apr 2026
Posts: 4,846
Own Kudos:
9,181
Given Kudos: 226
Affiliations: CrackVerbal
Location: India
Expert
Expert reply
Posts: 4,846
Kudos: 9,181
Square root of x^2-y^2=4 31 Dec 2022, 06:58
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hi Schachfreizeit

Pls go through this post.
The concept has been clearly explained here by me.

Bunuel has explained too on this thread his explanation of the concept.

Devmitra Sen

Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!