Problem Solving Using Vieta's Theorem (Math Competition Books) Paperback – Import, 23 November 2017

There is nothing to dislike about this book or the series of other books the author has published!!!Hopefully, the author would consider publishing a book on "functional equations" in the future since there is steady increase of this type in competitions.

Muy buen libro, recomendado

Muito Bom

Great book.

helpful