Hello,

I'm trying to prove problems like the following and I'm having issues since I have never been showed just how to work such a problem.

Prove the following inequality:

$\displaystyle |x| \leq 1 \Rightarrow |x^2-x-2| \leq 3|x+1|$

I'm sure this is quiet an easy problem I just need to have it showed to me since I'm really not used to be thinking "in proofs" just yet!

Thanks!