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Homework Help: How to factor 6x^2-11x+4

  1. Jan 26, 2009 #1
    1. The problem statement, all variables and given/known data
    6x^2-11x+4


    2. Relevant equations
    none


    3. The attempt at a solution
    MP
    24
    6x-2
    6x+12

    answer being: 6x+2 and x-2
     
  2. jcsd
  3. Jan 26, 2009 #2

    symbolipoint

    User Avatar
    Homework Helper
    Education Advisor
    Gold Member

    Re: Factoring

    By the trial&error method, for 6x^2 - 11x + 4,
    (6x + ?)(x +.... you know this one is no good.
    (6x - ?)(x - ?)
    (2x - ?)(3x - ?)

    You get a product of 4 from any of these:
    4=4*1=2*2
     
  4. Jan 26, 2009 #3
    Re: Factoring

    thanks but it has to be an answer in like the form i stated. Or maybe i am just not understanding you...
     
  5. Jan 26, 2009 #4

    Mark44

    Staff: Mentor

    Re: Factoring

    Are you saying that the factorization is (6x + 2)(x -2)? Whether you are or aren't, these aren't the factors of 6x^2 -11x + 4.
     
  6. Jan 28, 2009 #5
    Re: Factoring

    Try the AC method
    6x^2-11x+4 coef for A=6; coef for c=4 product 6(4)=24;
    find facors of 24 which can make 11 (3 and 8)
    hth
     
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