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    Please can someone help me factorise this expression.


    (Original post by sammychu00)
    Please can someone help me factorise this expression.

    Just expand the whole lot, making very sure not to forget any terms. Use the binomial expansion as a shortcut for the (ax+b)^3 bits. You should end up with a huge quintic. I can't guarantee that what's left will factorise - if you're going to look for factors, have a look at trying to divide (either use inspection or algebraic long-division) a few factors - start with (x+1), (x+2), (x-1) etc. Use the coefficients of the x^5 and constant terms as clues as to what to try.

    This expression does not factorise nicely, you must have made a mistake typing it.
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