View Single Post
Old 01-12-2011, 04:55 PM  
Odysseus
Confirmed User
 
Odysseus's Avatar
 
Industry Role:
Join Date: Apr 2005
Location: www.gfy.com
Posts: 745
Quote:
Originally Posted by blackmonsters View Post
a^2 - 2*a*b + b^2 = (a - b)^2

That would be a brand new kind of math than I never learned.
(a - b)^2 = (a - b)*(a - b) = a*a - a*b - b*a + b*b = a^2 - a*b - a*b + b^2 = a^2 - 2a*b + b^2

a^2 - 2*a*b + b^2 = (a - b)^2
Odysseus is offline   Share thread on Digg Share thread on Twitter Share thread on Reddit Share thread on Facebook Reply With Quote