Results 1 to 3 of 3

Math Help - basic fraction question

  1. #1
    Newbie
    Joined
    Sep 2013
    From
    california
    Posts
    2

    basic fraction question

    If I have \frac{(y^{3}-1)}{(y-1)}, can I simply factor out y^2, cancel out the \frac{(y-1)}{(y-1)}, leaving me with y^2?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,922
    Thanks
    1762
    Awards
    1

    Re: basic fraction question

    Quote Originally Posted by john95 View Post
    If I have \frac{(y^{3}-1)}{(y-1)}, can I simply factor out y^2, cancel out the \frac{(y-1)}{(y-1)}, leaving me with y^2?
    Absolutely not. You have the difference of two cubes:
    (y^3-1)=(y-1)(y^2+y+1)~.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Sep 2013
    From
    california
    Posts
    2

    Re: basic fraction question

    Thanks
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Relatively basic fraction multplication!
    Posted in the Algebra Forum
    Replies: 4
    Last Post: November 12th 2011, 08:31 PM
  2. Replies: 2
    Last Post: January 17th 2010, 01:31 PM
  3. 2 basic fraction equations
    Posted in the Algebra Forum
    Replies: 5
    Last Post: June 17th 2009, 10:14 PM
  4. Basic Fraction Algebra
    Posted in the Algebra Forum
    Replies: 3
    Last Post: June 3rd 2009, 06:48 PM
  5. need help with basic fraction problem
    Posted in the Algebra Forum
    Replies: 11
    Last Post: May 16th 2009, 01:45 AM

Search Tags


/mathhelpforum @mathhelpforum