This is what I have done so far but feel it might be wrong.

Factorise the following:

1) Xsquared - Ysquared = (X - Y) (X + Y)

2) (C + D)squared - Dsquared = C (C + 2D)

3) 2Wsquared + W - 3 = how do you do this one again?

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- Jan 8th 2011, 09:50 AMNatasha1Factorising algebraic expressions
This is what I have done so far but feel it might be wrong.

Factorise the following:

1) Xsquared - Ysquared = (X - Y) (X + Y)

2) (C + D)squared - Dsquared = C (C + 2D)

3) 2Wsquared + W - 3 = how do you do this one again? - Jan 8th 2011, 09:59 AMsnowtea
So far it looks right.

For the last one, it's something like (2W + ...)(W - ...) - Jan 8th 2011, 10:00 AMNatasha1
(2W + 3) (W - 2) got it!

- Jan 8th 2011, 10:04 AMsnowtea
- Jan 8th 2011, 10:04 AMTheCoffeeMachine
Snowtea's explanation is going well, and my comment

was only going to spoil it (complete solution and all)...