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 Post subject: NP Chapter 1 Page 39 Exercise 38
 Post Posted: Fri May 08, 2009 12:16 am 
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Course Students


Posts: 10
How does 18=xy+y becomes 18=y(x+1)


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 Post subject: Re: NP Chapter 1 Page 39 Exercise 38
 Post Posted: Fri May 08, 2009 3:09 am 
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ManhattanGMAT Staff


Posts: 480
Location: Durham, NC
This is just a straightforward factorization. We are pulling out the y value, which is a shared factor of both "xy" and "y."


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