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

It is currently 12 Nov 2018, 20:52

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
Events & Promotions in November
PrevNext
SuMoTuWeThFrSa
28293031123
45678910
11121314151617
18192021222324
2526272829301
Open Detailed Calendar
  • Essential GMAT Time-Management Hacks

     November 14, 2018

     November 14, 2018

     07:00 PM PST

     08:00 PM PST

    Join the webinar and learn time-management tactics that will guarantee you answer all questions, in all sections, on time. Save your spot today! Nov. 14th at 7 PM PST
  • $450 Tuition Credit & Official CAT Packs FREE

     November 15, 2018

     November 15, 2018

     10:00 PM MST

     11:00 PM MST

    EMPOWERgmat is giving away the complete Official GMAT Exam Pack collection worth $100 with the 3 Month Pack ($299)

If (x^2 + 6x + 9) + 6(x+3) + 9 = 0, then x=

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

Hide Tags

Senior PS Moderator
User avatar
V
Joined: 26 Feb 2016
Posts: 3301
Location: India
GPA: 3.12
Premium Member CAT Tests
If (x^2 + 6x + 9) + 6(x+3) + 9 = 0, then x=  [#permalink]

Show Tags

New post 02 Nov 2018, 01:26
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

77% (01:38) correct 23% (00:51) wrong based on 13 sessions

HideShow timer Statistics

If \((x^2 + 6x + 9) + 6(x+3) + 9 = 0\), then x=

(A) -6
(B) -3
(C) 0
(D) 3
(E) 6

_________________

You've got what it takes, but it will take everything you've got

PS Forum Moderator
User avatar
P
Joined: 16 Sep 2016
Posts: 359
GMAT 1: 740 Q50 V40
GMAT ToolKit User Premium Member Reviews Badge CAT Tests
Re: If (x^2 + 6x + 9) + 6(x+3) + 9 = 0, then x=  [#permalink]

Show Tags

New post 02 Nov 2018, 01:49
On careful observation we notice that the expression inside the first paranthesis is square of \(x+3\)
\((x^2 + 6x + 9) + 6(x+3) + 9 = 0\)

Hence we can denote x+3 by a new variable t.

Expression becomes...
\(t^2+6t+9=0\)
\((t+3)^2=0\)
\(t=-3\)
Substitute back to get original variable
\(x+3=-3\)
\(x = -6\)

Hence Option (A) is our choice.

Best,
Gladi

pushpitkc wrote:
If \((x^2 + 6x + 9) + 6(x+3) + 9 = 0\), then x=

(A) -6
(B) -3
(C) 0
(D) 3
(E) 6
GMAT Club Bot
Re: If (x^2 + 6x + 9) + 6(x+3) + 9 = 0, then x= &nbs [#permalink] 02 Nov 2018, 01:49
Display posts from previous: Sort by

If (x^2 + 6x + 9) + 6(x+3) + 9 = 0, then x=

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


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.