^tamago^ SG 1) For any real number x: x² - x² = x² - x² 2) Factoring both sides in two different ways: x² + x² - x² - x² = x² - x² (x - x)(x + x) = x(x - x) 3) Dividing both sides by (x - x): (1)(x + x) = x(1) 4) Which is: 2x = x 5) Since this is valid for any value of x, we can plug in x = 1. 2 = 1 but....... how can 2 be equals to 1? come, see who can explain why....
blackchickenahkai SG is it this?. since u have done it to one side of the equation..u should do it to the other side of the equation.. dunno...just a guess
^tamago^ SG no ar, first step says, for any real number x. x can be any number. this line is also true (x - x)(x + x) = x(x - x) i can put x=1, it is still a valid mathematical statement. 0 × 0 = 0 × 0 = 0 but when i divide by 0 the whole statement becomes invalid, as illustrated by the resulting x + x = x
CoolMyth SG Number theory where got division by zero one? Number theory basically talks about infinitude of primes and all that crap. This is really just simple algebra as far as I see it.
