Evaluating a Proof of ''1=2''

We will be evaluating a famous proof in math, coming from a misapplication of the properties of real number. The problem comes from Micheal Spivak's Calculus problem 2 from chapter 1

[@anonymouscheesepie3768]

hidden division by zero. if x^2 = xy, x = y. thus, x - y = 0. if we could divide by 0 any number could equal anything :)

[@snellbrosmath]

That's exactly correct!

[@jackhimes4400]

Always nice to see the other bro

[@yazeedalfrog]

Can't cancel our the (x-y) because it might be zero.

[@snellbrosmath]

Since x=y, we know that x-y=0

[@yazeedalfrog]

@@snellbrosmath ah yeah thanks, I commented my guess before watching the video. Keep it up

[@aaryan8104]

it is 0

[@aaryan8104]

Cant divide 0 with 0 end of discussion

[@nickronca1562]

You can't divide anything by 0