a = b a^2 = ab a^2 - b^2 = ab - b^2 (a + b)(a - b) = b(a - b) a + b = b b + b = b 2b = b 2 = 1
By rules of maths, this is invalid. But where is the flaw?
Ground at the Back
In WGPS JSS 1-52-5 3-5
15 years of age. (I'm not aged.)
Explorers club
Love maths
Goal of GOOD RESULTS
Fond of jigsaws =D
wishlist
LAPTOP!
6x6 CUBE! NEW hp NEW memory card xD PASS Chinese EOY still! Do well in 2009! Do excellent in 2010!
Go Ice-Skating!
Go ETP/WWW!
Go to a place with SNOW!
Remember birthdays =P
