# Factorisation question

1. Nov 5, 2006

### roxas

i know i totally sux so can anyone help me? thx

factorise x^3 - 2x^2 - 5x + 6

2. Nov 5, 2006

### arildno

Find a zero for your expression.

3. Nov 5, 2006

### roxas

i am too retarded:rofl: , can u show me a step by step please

4. Nov 5, 2006

### marlon

Yep and you should start by "guessing a number" that is either (-1,1,2,-2,3,-3,6,-6). Why these numbers ? Well 6 can be divided by these numbers. Let's say that number is 6. Then perform an Euclidian devision in which you devide the given expression by (x - 6). What you get is an expression of second degree in x times (x-6) equals the given expression. This should get you started

marlon

Last edited: Nov 5, 2006
5. Nov 5, 2006

### arildno

Don't bother to help OP, marlon.
In another thread, he has refused even to do a single thing on his own with the expression 18t^2-2.

He is just after having his homework done for him.

6. Nov 5, 2006

### marlon

Opps did not know that. Thanks for the advice, besides enough info has been given.

regards
marlon