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Math Help - Basic Factorisation

  1. #1
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    Basic Factorisation

    Sorry if this is too easy but I seem to have a bit of a block!

    I have to Factorise 4*(a*b) - 2*(a*c)

    I had a shot at it which gave me:
    take out 2a. ...

    2a*(8b-2c) hence

    (2a-8b)(2a-2c)

    this just looks wrong - any help is welcome.
    Last edited by Katie McMeeking; June 20th 2007 at 10:04 PM. Reason: Can't type for toffee!
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by Katie McMeeking View Post
    Sorry if this is too easy but I seem to have a bit of a block!

    I have to Factorise 4*(a*b) - 2*(a*c)

    I had a shot at it which gave me:
    take out 2a. ...
    OK, this gives:

    <br />
4(a\ b) - 2(a\ c) = 2a(2b-c)<br />

    and that is all you can do.

    RonL
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  3. #3
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    Thankyou - life saver! I knew it should be simple. ...
    Last edited by Katie McMeeking; June 20th 2007 at 10:24 PM. Reason: A bit more thanx.
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