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29 Oct 2017, 01:44
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
79% (00:45) correct
21%
(00:51)
wrong
based on 111
sessions
History
Date
Time
Result
Not Attempted Yet
Is x greater than zero?
(1) x^4 – 16 = 0
(2) x^3 – 8 = 0
(1) x^4 – 16 = 0
(2) x^3 – 8 = 0
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 Oct 2017, 10:49
Kudos
Bookmarks
B
St1: X can be 2 or -2
St 2. : X can be only 2
Sent from my Moto G (5) Plus using GMAT Club Forum mobile app
St1: X can be 2 or -2
St 2. : X can be only 2
Sent from my Moto G (5) Plus using GMAT Club Forum mobile app
29 Oct 2017, 19:17
Kudos
Bookmarks
(1) \(x^4\)-16=0
\(x^4\)= 16
x could be 2 or -2 [Insuff]
(2)\(x^3\)-8=0
\(x^3\)= 8
x must be +2 [Suff]
Answer: B.
\(x^4\)= 16
x could be 2 or -2 [Insuff]
(2)\(x^3\)-8=0
\(x^3\)= 8
x must be +2 [Suff]
Answer: B.
