Jay520 on 28 April 2013
| chapset said: 1=2 let's put a=1 b=1 a=b ab=b^2 (multiply by b) ab-a^2 = b^2 - a^2 (substract a^2) a(b-a)= (b+a)(b-a) (factorize) a = b+a divide by (b-a)) - ERROR! a= 2a (since a=b) 1= 2 since(a=1) |
b-a = 1-1 = 0
You can't divide (b-a) because you can't divide by zero. Otherwise it would make that proof true and 1 would equal 2!
