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# If f(z) = 2^(z+1), then which of the following can be the value of x

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Senior Manager
Joined: 18 Feb 2019
Posts: 366
Location: India
GMAT 1: 460 Q42 V13
GPA: 3.6
If f(z) = 2^(z+1), then which of the following can be the value of x  [#permalink]

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24 Mar 2019, 02:39
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Question Stats:

0% (00:00) correct 100% (04:06) wrong based on 3 sessions

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If f(z) = 2^(z+1), then which of the following can be the value of x for which f(1)∗f(2x)=f(x−1)∗{f(4)+f(−1)}−f(1)?

A. -3
B. -2
C. -1/8
D. 1/8
E. 4
Math Expert
Joined: 02 Sep 2009
Posts: 55150
Re: If f(z) = 2^(z+1), then which of the following can be the value of x  [#permalink]

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24 Mar 2019, 02:43
kiran120680 wrote:
If f(z) = 2^(z+1), then which of the following can be the value of x for which f(1)∗f(2x)=f(x−1)∗{f(4)+f(−1)}−f(1)?

A. -3
B. -2
C. -1/8
D. 1/8
E. 4

Discussed here: https://gmatclub.com/forum/if-f-z-2z-1- ... fl=similar
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Re: If f(z) = 2^(z+1), then which of the following can be the value of x   [#permalink] 24 Mar 2019, 02:43
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