The Diophantine equation X⁴-2X²Y-340Y²+X²-Y+1 = 0

[@emagalbiati1207]

I didn't understand the division by 11 in one of the last passages. Why you said the eleven divides 1360y^2 - 3?

[@marcodamele]

Sorrry, there is a typo. Should be 1364y²-3=z². If u reduced mod 11 you get z²=8 mod 11, that is impossible.

[@emagalbiati1207]

@@marcodamele thx, with 1364 instead of 1360 everything is clear

[@marcodamele]

@@emagalbiati1207 yeah sorry, was the second time registering the same video so I was a bit tired