GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

It is currently 30 Mar 2020, 09:00

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

(x + 3y)^2

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

Hide Tags

Find Similar Topics 
Senior PS Moderator
User avatar
V
Joined: 26 Feb 2016
Posts: 3260
Location: India
GPA: 3.12
(x + 3y)^2  [#permalink]

Show Tags

New post 31 Oct 2018, 16:58
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

98% (00:22) correct 2% (00:21) wrong based on 47 sessions

HideShow timer Statistics

\((x + 3y)^2\) =

A. \(x^2 + 3y^2\)
B. \(x^2 + 9y^2\)
C. \(x^2 + 3xy + 3y^2\)
D. \(x^2 + 3xy + 9y^2\)
E. \(x^2 + 6xy + 9y^2\)

_________________
You've got what it takes, but it will take everything you've got
Director
Director
User avatar
D
Status: Learning stage
Joined: 01 Oct 2017
Posts: 972
WE: Supply Chain Management (Energy and Utilities)
Re: (x + 3y)^2  [#permalink]

Show Tags

New post 31 Oct 2018, 18:39
pushpitkc wrote:
\((x + 3y)^2\) =

A. \(x^2 + 3y^2\)
B. \(x^2 + 9y^2\)
C. \(x^2 + 3xy + 3y^2\)
D. \(x^2 + 3xy + 9y^2\)
E. \(x^2 + 6xy + 9y^2\)


Apply \((a+b)^2=a^2+2ab+b^2\)

Now, \((x + 3y)^2=x^2 + 2*x*3y + (3y)^2=x^2 + 6xy + 9y^2\)

Ans. (E)
_________________
Regards,

PKN

Rise above the storm, you will find the sunshine
CR Forum Moderator
avatar
V
Joined: 25 Apr 2018
Posts: 629
GMAT 1: 680 Q49 V34
Reviews Badge
(x + 3y)^2  [#permalink]

Show Tags

New post 01 Nov 2018, 03:24
pushpitkc wrote:
\((x + 3y)^2\) =

A. \(x^2 + 3y^2\)
B. \(x^2 + 9y^2\)
C. \(x^2 + 3xy + 3y^2\)
D. \(x^2 + 3xy + 9y^2\)
E. \(x^2 + 6xy + 9y^2\)


simple application of formula

\((a+b)^2\)=\(a^2\)+\(2ab\)+\(b^2\)

\((x + 3y)^2\) = \(x^2 + 6xy + 9y^2\)

Option E
GMAT Club Bot
(x + 3y)^2   [#permalink] 01 Nov 2018, 03:24
Display posts from previous: Sort by

(x + 3y)^2

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





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