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    I've been set some work over the summer to prepare me for A level maths. How would i go about factorising questions like:
    6x^3−26x^2+8x
    Or if anyone has a link to video which might be helpful, since i can't find any.
    Thanks
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    You can factor an x from your equation, unless you forgot a term.
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    (Original post by iamayesha)
    I've been set some work over the summer to prepare me for A level maths. How would i go about factorising questions like:
    6x^3−26x^2+8x
    Or if anyone has a link to video which might be helpful, since i can't find any.
    Thanks
    what i think might be the solution:
    Spoiler:
    Show
    2x(3x-1)(x-4)

    what I did was take out the common factors first, to get something that resembles a quadratic since that is what we learned to factorise up to in GCSE.
    from there you can factorise the quadratic like you normally would

    steps:
    Spoiler:
    Show
    6x^3 - 26x^2 + 8x

    you can see that 2x is a common factor for all of the terms so factor this out.

    2x(3x^2 - 13x + 4)

    then factorise the bracket containing the quadratic. (I'm assuming you know how to do this)

    2x(3x-1)(x-4)
    • Thread Starter
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    (Original post by surina16)
    what i think might be the solution:
    Spoiler:
    Show
    2x(3x-1)(x-4)
    what I did was take out the common factors first, to get something that resembles a quadratic since that is what we learned to factorise up to in GCSE.
    from there you can factorise the quadratic like you normally would

    steps:
    Spoiler:
    Show
    6x^3 - 26x^2 + 8x

    you can see that 2x is a common factor for all of the terms so factor this out.

    2x(3x^2 - 13x + 4)

    then factorise the bracket containing the quadratic. (I'm assuming you know how to do this)

    2x(3x-1)(x-4)
    You made it so simple! Thankyou
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    (Original post by iamayesha)
    You made it so simple! Thankyou
    no problem
 
 
 
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