Results 1 to 3 of 3

Math Help - Back to the roots

  1. #1
    Junior Member
    Joined
    Mar 2009
    Posts
    25

    Back to the roots

    Hi everyone, although I am able to solve some very advanced maths, I think I still have lots of basic concepts that I am still not clear. It is the
    first day I am here so I 'd like to take this chance to ask.

    Back to the roots... what is L.C.M. and what is H.C.F.?

    and what is the H.C.F. of

    16ab and 24a^2

    another question is :

    how many methods to divide a polynomials in x by another polynomials in x?
    and what are the methods? I really forget these things

    By the way, is there any websites that explain some general concepts like the above? Because I have become a mathematics teacher recently, I hope to review some resources to help me recall some simple concepts and learn the way to explain to my students

    Thanks all
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Apr 2005
    Posts
    15,318
    Thanks
    1293
    Quote Originally Posted by kenny1999 View Post
    Hi everyone, although I am able to solve some very advanced maths, I think I still have lots of basic concepts that I am still not clear. It is the
    first day I am here so I 'd like to take this chance to ask.

    Back to the roots... what is L.C.M. and what is H.C.F.?
    L.C.M. is "least common multiple"- the smallest quantity that is a multiple of both (or all) numbers or expressions. H.C.F. is highest common factor (I would say "gcd"-greatest common divisor). It is the largest number or expression that divides all given numbers or expressions.

    and what is the H.C.F. of

    16ab and 24a^2
    16= 8*2 and 24= 8*3 so 8 is the largest number that will divide both 16 and 24. 16ab has one but not two factors of "a" and 23a^2 does not have a "b" so the H.C.F of 16ab and 24a^2 is 8a.
    Although you didn't ask, the L.C.M. is 48a^2b.

    another question is :

    how many methods to divide a polynomials in x by another polynomials in x?
    and what are the methods? I really forget these things
    How "methods" are there to divide numbers? There really only one "method"- old fashioned "long division". So called "synthetic division" is just a version of that for very simple cases.

    By the way, is there any websites that explain some general concepts like the above? Because I have become a mathematics teacher recently, I hope to review some resources to help me recall some simple concepts and learn the way to explain to my students

    Thanks all
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor
    Joined
    Mar 2007
    Posts
    1,240

    Talking

    Quote Originally Posted by kenny1999 View Post
    what is L.C.M. and what is H.C.F.?

    and what is the H.C.F. of 16ab and 24a^2

    how many methods to divide a polynomials in x by another polynomials in x?
    and what are the methods?

    ...is there any websites that explain some general concepts like the above?
    There are loads of sites. Try searching for specific topics:

    . . . . .Google results for "LCM GCF"

    . . . . .Google results for "factoring polynomials"

    . . . . .Google results for "dividing polynomials"

    If you notice certain helpful sites showing up frequently, you might want to bookmark them for future reference. :wink:
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Back-substitution help
    Posted in the Advanced Algebra Forum
    Replies: 2
    Last Post: January 26th 2011, 07:44 AM
  2. Back to back stemplot
    Posted in the Statistics Forum
    Replies: 1
    Last Post: March 16th 2009, 10:16 AM
  3. [SOLVED] Help please - otherwise I will need to go back to school!
    Posted in the Algebra Forum
    Replies: 3
    Last Post: February 11th 2008, 04:34 AM
  4. I'm Back and I am desperate!!
    Posted in the Math Topics Forum
    Replies: 1
    Last Post: August 11th 2006, 03:58 PM

Search Tags


/mathhelpforum @mathhelpforum