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# Trick to binomial factoring with large numbers?

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Intern
Joined: 18 Nov 2011
Posts: 37
Concentration: Strategy, Marketing
GMAT Date: 06-18-2013
GPA: 3.98
Trick to binomial factoring with large numbers? [#permalink]

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10 Jan 2013, 12:36
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(Sorry if this in the wrong secton, still new here and not sure where else this would go)

I know the rules for factoring, but was wondering if there is a method/trick to handling problems where the numbers are large and obscure. For example, $$x^2+16x-1536$$

Obviously I knew the seperation of the two factors in their absolute form would be 16. I eventually was able to work my way to the answer of 32, -48 but not without a tedious process of picking a starting number (40) and working my way toward the number set.

The 16/1536 relation is not intuitive, is there a trick to arriving at 32,-48 more quickly?

Thanks
VP
Joined: 23 Mar 2011
Posts: 1113
Concentration: Healthcare, Strategy
Schools: Duke '16 (M)
Re: Trick to binomial factoring with large numbers? [#permalink]

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10 Jan 2013, 13:25
Please check this out:
quick-factoring-question-145290.html

to add, you won't see absurd numbers on the test.

hope this helps.
Re: Trick to binomial factoring with large numbers?   [#permalink] 10 Jan 2013, 13:25
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# Trick to binomial factoring with large numbers?

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