Results 1 to 2 of 2

Math Help - Please help with Factoring

  1. #1
    Newbie
    Joined
    Apr 2010
    Posts
    14

    Please help with Factoring

    cos^(2) x +2cosxsinx + sin^2x


    tan^(4) x - 2tan^x -3


    2cos^(2) x - 5cosx + 2


    Have a final tomorrow, please dont just start the problem. I would really appreciate it if you could show me the step by step process to any one of these problems. Thanks
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Prove It's Avatar
    Joined
    Aug 2008
    Posts
    11,404
    Thanks
    1293
    Quote Originally Posted by acherucheril View Post
    cos^(2) x +2cosxsinx + sin^2x


    tan^(4) x - 2tan^x -3


    2cos^(2) x - 5cosx + 2


    Have a final tomorrow, please dont just start the problem. I would really appreciate it if you could show me the step by step process to any one of these problems. Thanks
    Sorry, but we're not going to do your work for you.

    In the first one, replace \cos{x} with X and \sin{x} with Y to get

    \cos^2{x} + 2\cos{x}\sin{x} + \sin^2{x} = X^2 + 2XY + Y^2.

    Does this look easier to factorise?


    Are you sure the second one isn't

    \tan^4{x} - 2 \tan^2{x} - 3?


    The third one, replace \cos{x} with X to get

    2\cos^2{x}-5\cos{x}+ 2 = 2X^2 - 5X + 2.

    Does this look easier to factorise?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. need help with factoring
    Posted in the Algebra Forum
    Replies: 1
    Last Post: February 7th 2010, 10:47 AM
  2. factoring help
    Posted in the Algebra Forum
    Replies: 2
    Last Post: February 4th 2010, 07:44 PM
  3. Is this factoring or something?
    Posted in the Algebra Forum
    Replies: 4
    Last Post: February 1st 2010, 06:54 PM
  4. Replies: 2
    Last Post: August 22nd 2009, 10:57 AM
  5. Replies: 3
    Last Post: November 5th 2006, 11:02 PM

Search Tags


/mathhelpforum @mathhelpforum