I got a brain teaser for you guys, courtesy of Mr Steven Wee.

(x-a)(x-b)(x-c).....(x-z) = ?

Hint: By using Binomial Theorem(Additional Mathematics), you should be able to get it. (Emphasis on the should.)

Answer will be on next post! :D

If you know the answer, don't tell anyone! Heh Heh.

P.S. My brother got accepted into London School of Economics! (: Congrats, bro.