NEW HERE? LEARN MORE
closeclose
Last visit was: 25 Apr 2024, 03:52 It is currently 25 Apr 2024, 03:52
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

What is the value of the expression x(x 2)^3 when x = 1?

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
User avatar
B
quynhtran2209
Intern
Intern
Joined: 30 Apr 2020
Posts: 5
Own Kudos [?]: 19 [3]
Given Kudos: 16
Location: Viet Nam
GMAT 1: 460 Q43 V13
GPA: 3.33
Send PM
What is the value of the expression x(x 2)^3 when x = 1? [#permalink] New post   03 Mar 2021, 02:02
3
Bookmarks
00:00
A
B
C
D
E

Difficulty:

5% (low)

Question Stats:

92% (00:26) correct 8% (00:39) wrong based on 136 sessions
Hide Show timer Statistics
What is the value of the expression \(x(x – 2)^{3}\) when x = –1?

(A) -27
(B) -1
(C) 1
(D) 9
(E) 27

PS13704

Source: GMAT Official Practice.
ShowHide Answer
Official Answer
E
User avatar
L
kntombat
Retired Moderator
Joined: 28 Feb 2020
Posts: 949
Own Kudos [?]: 485 [0]
Given Kudos: 839
Location: India
WE:Other (Other)
Send PM
Re: What is the value of the expression x(x 2)^3 when x = 1? [#permalink] New post   03 Mar 2021, 02:33
Given equation is \(x(x-2)^{3}\).

Value of x given is \(-1\).

Substituting given value of \( x\) in the given equation.

\(-1(-1-2)^3 =>\) \(-1(-3)^3 =>\) \(-1*-27 => 27\).

The OA is E
User avatar
L
Kinshook
GMAT Club Legend
GMAT Club Legend
Joined: 03 Jun 2019
Posts: 5343
Own Kudos [?]: 3964 [0]
Given Kudos: 160
Location: India
Schools: HBS '22 CBS '22 Wharton '22
GMAT 1: 690 Q50 V34
WE:Engineering (Transportation)
Send PM
Reviews Badge
Re: What is the value of the expression x(x 2)^3 when x = 1? [#permalink] New post   03 Mar 2021, 08:13
Asked: What is the value of the expression \(x(x – 2)^{3}\) when x = –1?

\(x(x – 2)^{3} = (-1)(-3)^3 = (-1)(-27) = 27\)

IMO E
User avatar
P
ramlala
Senior Manager
Senior Manager
Joined: 22 Aug 2020
Posts: 475
Own Kudos [?]: 352 [0]
Given Kudos: 30
Location: India
Concentration: International Business, Finance
Schools: IIMA PGPX'23 INSEAD Jan'23 intake Sloan (MIT) ISB HEC Oxford Said
GPA: 4
WE:Project Management (Energy and Utilities)
Send PM
Re: What is the value of the expression x(x 2)^3 when x = 1? [#permalink] New post   03 Mar 2021, 09:08
quynhtran2209 wrote:
What is the value of the expression \(x(x – 2)^{3}\) when x = –1?

(A) -27
(B) -1
(C) 1
(D) 9
(E) 27

Source: GMAT Official Practice.


\((-1 – 2)^{3}\) = \((– 3)^{3}\) = (- 27)

\(x (- 27)\) = \((-1) (- 27)\) = 27
User avatar
D
shashankism
Director
Director
Joined: 13 Mar 2017
Affiliations: IIT Dhanbad
Posts: 628
Own Kudos [?]: 589 [1]
Given Kudos: 88
Location: India
Concentration: General Management, Entrepreneurship
GPA: 3.8
WE:Engineering (Energy and Utilities)
Send PM
Re: What is the value of the expression x(x 2)^3 when x = 1? [#permalink] New post   03 Mar 2021, 10:39
1
Kudos
quynhtran2209 wrote:
What is the value of the expression \(x(x – 2)^{3}\) when x = –1?

(A) -27
(B) -1
(C) 1
(D) 9
(E) 27

Source: GMAT Official Practice.

\(x(x – 2)^{3}\)
= \((-1)(-1 – 2)^{3}\)
= -1 * -27
= 27

Answer:
Show Spoiler
E
User avatar
L
ScottTargetTestPrep
Target Test Prep Representative
Joined: 14 Oct 2015
Status:Founder & CEO
Affiliations: Target Test Prep
Posts: 18756
Own Kudos [?]: 22050 [0]
Given Kudos: 283
Location: United States (CA)
Send PM
Re: What is the value of the expression x(x 2)^3 when x = 1? [#permalink] New post   20 Mar 2021, 13:05
Expert Reply
quynhtran2209 wrote:
What is the value of the expression \(x(x – 2)^{3}\) when x = –1?

(A) -27
(B) -1
(C) 1
(D) 9
(E) 27

Source: GMAT Official Practice.

Solution:

The value of the expression x(x - 2)^3 when x = -1 is:

(-1)(-1 - 2)^3 = (-1)(-27) = 27

Answer: E
User avatar
bumpbot
Non-Human User
Joined: 09 Sep 2013
Posts: 32666
Own Kudos [?]: 821 [1]
Given Kudos: 0
Send PM
Re: What is the value of the expression x(x 2)^3 when x = 1? [#permalink] New post   12 Jan 2023, 22:25
1
Kudos
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
gmatclubot
Re: What is the value of the expression x(x 2)^3 when x = 1? [#permalink]
12 Jan 2023, 22:25
Moderators:
Bunuel
Math Expert
92912 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3137 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions