Discriminant - Wikipedia, the free encyclopedia

My questions are in the topic "Discriminant of a polynomial".

How to prove that the of a polynomial is equal to the of the (2n− 1)×(2n− 1) matrix.

And why the the of this (2n− 1)×(2n− 1) matrix is equal to the of and .

Please give me some hints or tell me where I can find the detail proofs.

Thank You!!!