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For every positive integer n, the function h(n) is defined

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gokul_nair1984
 Post subject: Re: For every positive integer n, the function h(n) is defined
 Post Posted: Mon Oct 04, 2010 9:29 am 
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Students


Posts: 170
I realised my error. Yes you just cannot take common factors in multiplication just as you do in addition or subtraction.

Thank You Ron
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RonPurewal
 Post subject: Re: For every positive integer n, the function h(n) is defined
 Post Posted: Tue Oct 05, 2010 5:22 am 
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ManhattanGMAT Staff


Posts: 7146
gokul_nair1984 wrote:
I realised my error. Yes you just cannot take common factors in multiplication just as you do in addition or subtraction.

Thank You Ron


sure.

you should make a flash card of that particular operation (unsimplified version on the front, simplified version on the back), so that you can go over it and cement the knowledge in your head.

in fact, this is what you should do with almost all arithmetic and/or algebraic errors -- you should make flashcards of them. that way, after a while, you will have a deck of exactly the mistakes that you tend to make; that will be immensely valuable (and is something that you can't buy for any amount of money).
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