Today I opened it and saw mistakes on the first pages... it says that the domain of a root with an odd index must be positive, which is not true since negative numbers also have roots with an odd index... I shouldn't have bought it

I bought the book based on the fact that it is a 2024 edition, so it is updated up to 2024. What I didn't like is that when you buy such a book, you buy it as an aid, meaning to help you understand the material, apart from the exercises with solutions. If it doesn't explain some steps, I don't consider it an aid. For example, somewhere it says that for a third-degree equation we solve it with Horner's method, but it doesn't explain how Horner's method works, it just presents it, even though we bought the book as an aid to help us understand the exercises and methods. It's just like the third-year high school book, which assumes you know all these things from previous years and is not detailed. I would like a book that explains and analyzes each method step by step. This book contains a lot of exercises, which it shows how to solve, but it doesn't explain, it only shows the solution. So if you want to learn, it won't teach you anything.