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March 28, 2017

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Factorise

4x^2-7x+3=

and

6x^2+10x-5=

Thanks

Method would be good-as I am stuck.

  • algebra - ,

    1. (4x-3)(x-1)

    2. Use the quadratic formula which you can find on youtube.

  • algebra - ,

    Thanks,can you tell me the answer to the second one.

  • algebra - ,

    Ans also I got this far for the first part's method

    4x^2-7x+3=
    4x^2-3x-4x+3=
    x(4x-3)-1(4x+3)


    but there is nothing similar-how did you get (4x-3) for both of them.

  • algebra - ,

    Can someone please help-I need to do this today.

    All I need is the method and answer.

  • algebra - ,

    4x^2 - 7x + 3.
    Use the AC Method:
    A * C = 4 * 3 = 12 = -3 * -4,
    4X^2 + (-3X + -4X) +3,
    Group the 4 terms into 2 factorable pairs:

    4x^2 -4x) + (-3x + 3),
    Factor 4x from the 1st pair & -3 from
    the 2nd pair:

    4x(x - 1) + -3(x - 1),
    Factor (x - 1) from each term:
    (x - 1) (4x - 3).

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