Results 1 to 6 of 6

Math Help - solve trinomials with two unknows

  1. #1
    Senior Member
    Joined
    Jul 2010
    Posts
    380
    Thanks
    5

    solve trinomials with two unknows

    Hi all;
    I know how to factor 5x^2 + 13xy + 8y^2 (5x + 8y)(x + y)
    How do I go an to solve it?


    Thanks.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Dec 2009
    Posts
    3,120
    Thanks
    1
    Quote Originally Posted by anthonye View Post
    Hi all;
    I know how to factor 5x^2 + 13xy + 8y^2 (5x + 8y)(x + y)
    How do I go an to solve it?


    Thanks.
    Do you have a value for the expression?
    What is the purpose of factoring?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by anthonye View Post
    Hi all;
    I know how to factor 5x^2 + 13xy + 8y^2 (5x + 8y)(x + y)
    How do I go an to solve it?


    Thanks.
    What do you mean solve it? Equations are solved but since you have not posted an equation, only an expression, there is nothing to solve. Note: Equations have an "=" sign in them eg. x^2 - 5x + 6 = 0.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Senior Member
    Joined
    Jul 2010
    Posts
    380
    Thanks
    5
    Yeah I should of edited my post lets say it equals 0 then how to solve.
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by anthonye View Post
    Yeah I should of edited my post lets say it equals 0 then how to solve.
    (5x + 8y)(x + y) = 0 => 5x + 8y = 0 or x + y = 0 and various re-arrangements can be made to make either x or y the subject. Unless further information is known, nothing more can be done.
    Follow Math Help Forum on Facebook and Google+

  6. #6
    Senior Member
    Joined
    Jul 2010
    Posts
    380
    Thanks
    5
    Of course I just didn't see it thanks again.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. 2 equations with 2 unknows Y & C
    Posted in the Business Math Forum
    Replies: 1
    Last Post: August 22nd 2011, 08:10 AM
  2. Trinomials
    Posted in the Algebra Forum
    Replies: 2
    Last Post: September 15th 2009, 03:20 PM
  3. Finding two unknows from one equation
    Posted in the Algebra Forum
    Replies: 1
    Last Post: April 22nd 2009, 02:48 AM
  4. 4 equations in 4 unknows. help??
    Posted in the Calculus Forum
    Replies: 1
    Last Post: November 11th 2008, 06:38 PM
  5. Trinomials
    Posted in the Math Topics Forum
    Replies: 4
    Last Post: August 2nd 2005, 06:21 PM

Search Tags


/mathhelpforum @mathhelpforum