Results 1 to 2 of 2

Math Help - Quadratics

  1. #1
    Newbie
    Joined
    Sep 2011
    Posts
    12

    Quadratics

    Using the quadratic formula why does

    y + y + 1 = 0

    equal a negative answer ??
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor Siron's Avatar
    Joined
    Jul 2011
    From
    Norway
    Posts
    1,250
    Thanks
    20

    Re: Quadratics

    If you calculate the discriminant D=1^2-4\cdot 1\cdot 1=1-4=-3, this means there're no real zero's (only complex zero's), therefore there're no solutions in \mathbb{R}. Does this answer your question?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. quadratics help
    Posted in the Pre-Calculus Forum
    Replies: 4
    Last Post: February 24th 2009, 03:38 PM
  2. Quadratics
    Posted in the Algebra Forum
    Replies: 6
    Last Post: December 8th 2008, 01:39 AM
  3. Quadratics
    Posted in the Algebra Forum
    Replies: 8
    Last Post: November 2nd 2008, 05:58 AM
  4. Help with Quadratics
    Posted in the Algebra Forum
    Replies: 2
    Last Post: June 19th 2008, 08:09 PM
  5. Quadratics, Help!
    Posted in the Math Topics Forum
    Replies: 1
    Last Post: June 17th 2008, 04:37 PM

Search Tags


/mathhelpforum @mathhelpforum