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# exponents, what am I doing wrong...

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Intern
Joined: 30 Dec 2004
Posts: 25

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exponents, what am I doing wrong... [#permalink]

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02 Mar 2007, 08:42
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

this was taken from GMAT prep:

2^((4-1)^2)/2^(3-2)

My wrong solution:

2^6/2^1 = 2^5

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Senior Manager
Joined: 18 Feb 2007
Posts: 253

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Re: exponents, what am I doing wrong... [#permalink]

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02 Mar 2007, 08:47
Stormgal wrote:
this was taken from GMAT prep:

2^((4-1)^2)/2^(3-2)

My wrong solution:

2^6/2^1 = 2^5

= (2^9)/(2^1) = 2^(9-1) = 2^8

(2^(4-1))^2) / 2^(3-2)

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Intern
Joined: 30 Dec 2004
Posts: 25

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02 Mar 2007, 10:13
thanks, ugh, I made such a simple mistake...

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02 Mar 2007, 10:13
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# exponents, what am I doing wrong...

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