VikingF is new to Captain Cynic and has less than 15 posts. New members have certain restrictions and must fill in CAPTCHAs to use various parts of the site.
a=b=0 a^2 = a*b a^2-b^2 = a*b-b^2 (a+b)(a-b) = b(a-b) (a+b) = b a+a = a 2a = a 2 = 1
The error here is that a=b=0 Thus, a-b=0
When you do this: (a+b)(a-b) = b(a-b) (a+b) = b you divide by zero, something that is illegal in math.
blankshell44 is new to Captain Cynic and has less than 15 posts. New members have certain restrictions and must fill in CAPTCHAs to use various parts of the site.
in theory with variables it works, but with real numbers it doesn't work because of the zeroes. but you get the zeroes when you simplify, as one should, but without simplyfying it, I believe it works out.