It is currently 16 Oct 2017, 23:46

### 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

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

# If x * = x^2 + 4, which of the following is equivalent to

 Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:
Moderator
Joined: 18 Apr 2015
Posts: 2087
Followers: 29

Kudos [?]: 308 [0], given: 1256

If x * = x^2 + 4, which of the following is equivalent to [#permalink]  07 Jun 2017, 01:25
Expert's post
00:00

Difficulty:

5% (low)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

If x* = x^2 + 4, which of the following is equivalent to 2* ?

A) (−2)*

B) 0*

C) 4*

D) 6*

E) 8*
[Reveal] Spoiler: OA

_________________
Senior Manager
Joined: 03 Sep 2017
Posts: 333
Followers: 0

Kudos [?]: 89 [0], given: 64

Re: If x * = x^2 + 4, which of the following is equivalent to [#permalink]  27 Sep 2017, 08:40
2* = 2^2+2 = 4. Thus, the only number to the * which leads to 4 is -2 since it is elevated to the 2 and it is exactly if we have 2. Answer A!
Re: If x * = x^2 + 4, which of the following is equivalent to   [#permalink] 27 Sep 2017, 08:40
Display posts from previous: Sort by

# If x * = x^2 + 4, which of the following is equivalent to

 Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.