GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 23 Sep 2019, 10:52

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.

Close

Request Expert Reply

Confirm Cancel

What is the value of x? (1) 2x + 1 = 0 (2) (x + 1)^2 = x^2

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58116
What is the value of x? (1) 2x + 1 = 0 (2) (x + 1)^2 = x^2  [#permalink]

Show Tags

New post 23 Sep 2018, 21:12
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

89% (00:35) correct 11% (00:31) wrong based on 131 sessions

HideShow timer Statistics

Intern
Intern
User avatar
S
Joined: 17 Apr 2018
Posts: 21
Location: Italy
Concentration: General Management, Entrepreneurship
GPA: 3.75
GMAT ToolKit User Premium Member
Re: What is the value of x? (1) 2x + 1 = 0 (2) (x + 1)^2 = x^2  [#permalink]

Show Tags

New post 28 Sep 2018, 23:10
1
Time needed: 31s

Statement 1:
\(2x+1=0\)
We have an equation with one variable, which will give us only one solution --> Sufficient

Statement 2:
\((x+1)^2 = x^2\)
The two \(x^2\) will cancel out, leaving us with an equation with one variable. Again, there's no need for calculations since they would make us waste time. --> Sufficient

Answer: D
_________________
Give kudos if you found this post helpful :D

My GMAT history:
1st GMATPrep: 620 (Q46, V29)
2nd GMATPrep: 700(Q46, V40)
3rd GMATPrep: 720(Q49, V38)
CEO
CEO
User avatar
D
Status: GMATINSIGHT Tutor
Joined: 08 Jul 2010
Posts: 2973
Location: India
GMAT: INSIGHT
Schools: Darden '21
WE: Education (Education)
Reviews Badge
Re: What is the value of x? (1) 2x + 1 = 0 (2) (x + 1)^2 = x^2  [#permalink]

Show Tags

New post 29 Sep 2018, 05:47
Bunuel wrote:
What is the value of x?


(1) \(2x + 1 = 0\)

(2) \((x + 1)^2 = x^2\)


Question: What is the value of x?

Statement 1: \(2x + 1 = 0\)
\(i.e. x = -1/2\)
SUFFICIENT

Statement 2: \((x + 1)^2 = x^2\)

i.e. \(x+1 = -x\)
i.e. \(i.e. x = -1/2\)
SUFFICIENT


Answer: Option D
_________________
Prosper!!!
GMATinsight
Bhoopendra Singh and Dr.Sushma Jha
e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772
Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi
http://www.GMATinsight.com/testimonials.html

ACCESS FREE GMAT TESTS HERE:22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION
Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 12559
Re: What is the value of x? 1. 2x + 1 = 0 2. (x+1)^2 =  [#permalink]

Show Tags

New post 06 Sep 2019, 06:11
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Club Bot
Re: What is the value of x? 1. 2x + 1 = 0 2. (x+1)^2 =   [#permalink] 06 Sep 2019, 06:11
Display posts from previous: Sort by

What is the value of x? (1) 2x + 1 = 0 (2) (x + 1)^2 = x^2

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne