Question 6490
ok, with questions like this, we can be fairly certain that it factorises, so keep calm and build it up slowly...


{{{ x^2+x-yx-y }}} --> look at the first 2 terms and then seperately at the last 2 terms and we can write it as:


x(x+1)-y(x+1)


We still have 2 terms, now seperated by the - sign, so we can look at these 2 terms and see what is still common, to pull that out. Common term is (x+1), so we can now write it as:


(x+1)(x-y)


and this is your answer, now factorised :-)


jon.