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Foundations of Math pg 74 questions 3 and 5

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cssears
 Post subject: Foundations of Math pg 74 questions 3 and 5
 Post Posted: Thu Feb 25, 2010 1:26 pm 
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Course Students


Posts: 15
Are the answer explanations for questions 3 and 5 correct?

I don't think they but i want to make sure I am not missing something.

In #3, to mulitply to a positive 28 both factors must be either positive or negative, correct? The answer explanation show different signs.

In #5 I think they have the signs misplaced for the factors.

I just want to make sure I am not missing something here.
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Ben Ku
 Post subject: Re: Foundations of Math pg 74 questions 3 and 5
 Post Posted: Sat Feb 27, 2010 1:47 am 
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ManhattanGMAT Staff


Posts: 824
These are errors in the book. You can find the updates in the Errata page:

http://www.manhattangmat.com/errata-fom-4ed.cfm

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Ben Ku
Instructor
ManhattanGMAT
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