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

 It is currently 16 Oct 2019, 05:08

### 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

# Which of the following is equivalent to 3x^2 + 18x + 27?

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58386
Which of the following is equivalent to 3x^2 + 18x + 27?  [#permalink]

### Show Tags

14 Jan 2019, 03:09
00:00

Difficulty:

15% (low)

Question Stats:

88% (00:45) correct 12% (01:05) wrong based on 31 sessions

### HideShow timer Statistics

Which of the following is equivalent to $$3x^2 + 18x + 27$$?

A. $$3(x^2 + 6x + 3)$$

B. $$3(x + 3)(x + 6)$$

C. $$3(x + 3)(x + 3)$$

D. $$3x(x + 6 + 9)$$

E. $$3x^2 + x(18 + 27)$$

_________________
VP
Joined: 31 Oct 2013
Posts: 1469
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: Which of the following is equivalent to 3x^2 + 18x + 27?  [#permalink]

### Show Tags

14 Jan 2019, 03:20
Bunuel wrote:
Which of the following is equivalent to $$3x^2 + 18x + 27$$?

A. $$3(x^2 + 6x + 3)$$

B. $$3(x + 3)(x + 6)$$

C. $$3(x + 3)(x + 3)$$

D. $$3x(x + 6 + 9)$$

E. $$3x^2 + x(18 + 27)$$

$$3x^2 + 18x + 27$$

=$$3 ( x^2 + 6x + 9)$$

=$$3 ( x^2 + 2.3x + 3^2)$$

= $$3 (x+3)^2$$

= 3(x + 3) ( x + 3)

Senior Manager
Joined: 13 Jan 2018
Posts: 342
Location: India
Concentration: Operations, General Management
GMAT 1: 580 Q47 V23
GMAT 2: 640 Q49 V27
GPA: 4
WE: Consulting (Consulting)
Which of the following is equivalent to 3x^2 + 18x + 27?  [#permalink]

### Show Tags

14 Jan 2019, 04:08
$$3x^2+18x+27$$

$$=3(x^2+6x+9)$$

$$=3(x^2+2(3x)+3^2)$$

$$= 3(x+3)^2$$

= 3(x + 3)( x + 3)

OPTION: C
_________________
____________________________
Regards,

Chaitanya

+1 Kudos

if you like my explanation!!!
Which of the following is equivalent to 3x^2 + 18x + 27?   [#permalink] 14 Jan 2019, 04:08
Display posts from previous: Sort by