New formula of equation third degree - R S Chaves

It is with great satisfaction that I present the book: Cartilha das Equações (formulas of R. S. Chaves), published in the Amazon stores in e-Book Kindle. This book contains unpublished formulas for second, third, fourth, and fifth degree equations. The demonstration of the formulas is published in the book. It was released on August 16, 2018.
The way these formulas have been developed may inspire mathematicians to develop new formulas.
Amazon lets you read the first few pages of the book before you buy it. Take a look and you'll see it's worth it. In Amazon search look for: "R. S. Chaves" or "Cartilha das Equações". If you prefer, please indicate below the direct links to the book.

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