Ok, just saw that post after my internet connection was re-established.
I wasn't understanding what had to be done until shihouzhuge posted the solution.
Also, mathwiz, the member called unknown008sucks is an annoying person who got banned as soon as (s)he posted something. It's sad how people try to copy my username :rolleyes:
EDIT: Oh, that that thread fits better in 'Mathematics' or 'Other Science' boards. Just saying...