# Thread: Factorise the following as fully as possible:

1. ## Factorise the following as fully as possible:

3x^3 - 6x^2 - 24x

2. Originally Posted by Mr Rayon
3x^3 - 6x^2 - 24x
Start by taking 3x out as a common factor.

3. Originally Posted by Mr Rayon
3x^3 - 6x^2 - 24x
$3x^3 - 6x^2 - 24x = 3x (x^2 - 2x - 8) = 3x (x-4) (x+2)$

Hope this helps.

4. Originally Posted by Mr Rayon
3x^3 - 6x^2 - 24x
This one works just like the factorization of your other cubic post: Locate the common factor and take it out front; then factor the remaining quadratic to obtain the result you've been given in an earlier reply in this thread.

Also posted here

5. Originally Posted by stapel
Also posted here
Never thought anyone would find out.