Trick to binomial factoring with large numbers? : GMAT Quantitative Section
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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
Followers: 0

Kudos [?]: 11 [1] , given: 0

Trick to binomial factoring with large numbers? [#permalink]

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10 Jan 2013, 11:36
1
KUDOS
(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)
Followers: 78

Kudos [?]: 493 [0], given: 463

Re: Trick to binomial factoring with large numbers? [#permalink]

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10 Jan 2013, 12:25
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, 12:25
Similar topics Replies Last post
Similar
Topics:
1 Whats the trick on finding factors larger than 12? 6 10 Sep 2016, 16:00
1 Number of factors 3 14 Oct 2015, 05:29
1 Number of distinct factors of a number 6 11 Sep 2012, 11:32
2 The lucky number trick: Remainder when divided by 9 2 08 May 2011, 02:31
3 Finding Factors of Large Nums 9 02 Mar 2010, 12:21
Display posts from previous: Sort by

# Trick to binomial factoring with large numbers?

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 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.
The text passage provided does not contain a mathematical question or any calculations. It is a post from a GMAT forum asking about a trick for factoring binomials with large numbers, specifically the expression \(x^2 + 16x - 1536\).
no_question
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
Trick to binomial factoring with large numbers? : GMAT Quantitative Section
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# Trick to binomial factoring with large numbers?

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:

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Intern
Joined: 18 Nov 2011
Posts: 37
Concentration: Strategy, Marketing
GMAT Date: 06-18-2013
GPA: 3.98
Followers: 0

Kudos [?]: 11 [1] , given: 0

Trick to binomial factoring with large numbers? [#permalink]

### Show Tags

10 Jan 2013, 11:36
1
KUDOS
(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)
Followers: 78

Kudos [?]: 493 [0], given: 463

Re: Trick to binomial factoring with large numbers? [#permalink]

### Show Tags

10 Jan 2013, 12:25
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, 12:25
Similar topics Replies Last post
Similar
Topics:
1 Whats the trick on finding factors larger than 12? 6 10 Sep 2016, 16:00
1 Number of factors 3 14 Oct 2015, 05:29
1 Number of distinct factors of a number 6 11 Sep 2012, 11:32
2 The lucky number trick: Remainder when divided by 9 2 08 May 2011, 02:31
3 Finding Factors of Large Nums 9 02 Mar 2010, 12:21
Display posts from previous: Sort by

# Trick to binomial factoring with large numbers?

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.
user
The text passage provided does not contain a mathematical question or any calculations. It is a post from a GMAT forum asking about a trick for factoring binomials with large numbers, specifically the expression \(x^2 + 16x - 1536\).

TYPE: NO_QUESTION