|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
29 Mar 2014, 16:05
Kudos
Bookmarks
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
79% (00:48) correct
21%
(00:52)
wrong
based on 758
sessions
History
Date
Time
Result
Not Attempted Yet
If x is a negative number, what is the value of x?
(1) x^2 = 1
(2) x^2 + 3x + 2 = 0
(1) x^2 = 1
(2) x^2 + 3x + 2 = 0
Every tricky question should trigger a follow up quiz.
Build that habit with
GMAT Club Forum Quiz →.
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
29 Mar 2014, 16:12
Kudos
Bookmarks
If x is a negative number, what is the value of x?
(1) x^2 = 1 --> x=-1 or x=1. Since we are given that x is a negative number, then x=-1. Sufficient.
(2) x^2 + 3x + 2 = 0 --> (x + 1)(x + 2) = 0 --> x=-1 or x=-2. Two values. Not sufficient.
Answer: A.
(1) x^2 = 1 --> x=-1 or x=1. Since we are given that x is a negative number, then x=-1. Sufficient.
(2) x^2 + 3x + 2 = 0 --> (x + 1)(x + 2) = 0 --> x=-1 or x=-2. Two values. Not sufficient.
Answer: A.
26 Jan 2017, 07:07
Kudos
Bookmarks
Focusing on phrase " x is a negative number" is important otherwise we may choose incorrect answer.
