Jump to content

Welcome to BrainDen.com - Brain Teasers Forum

Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account.
As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends.

Of course, you can also enjoy our collection of amazing optical illusions and cool math games.

If you like our site, you may support us by simply clicking Google "+1" or Facebook "Like" buttons at the top.
If you have a website, we would appreciate a little link to BrainDen.

Thanks and enjoy the Den :-)
Guest Message by DevFuse

- - - - -

Factor completely over integer coefficients

  • Please log in to reply
1 reply to this topic

#1 Perhaps check it again

Perhaps check it again

    Junior Member

  • Members
  • PipPip
  • 88 posts
  • Gender:Male

Posted 26 January 2014 - 07:29 AM

x7 + x + x5 + x4 + x3 + x2 + x + 1








(Please do it without using the assistance of a computer, calculator, or mathematics formula book.)

  • 0

#2 superprismatic


    Not just Prismatic

  • Moderator
  • PipPipPipPip
  • 1281 posts
  • Gender:Male

Posted 27 January 2014 - 11:15 PM

Spoiler for a fun way to do it

  • 0

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users