How to break into a math book

Tu Hua's deskmate gave him a book called "Mathematics Breakthrough", and it is said that after completing it, he will be able to enter A University!Professor Su Gechisu, who edited this book, is not only young and handsome, but also has a super high IQ. He can be called the queen of idols!Tu Hua opened a question piously, pondered for a long time and wrote a few words: Solution: Suppose x... Then he was dragged into the book by a domineering, arrogant and evil Mr. X: I heard that you want to set me up. ,Um?Tu Hua thought it was an unknown NPC x called Beast Gong VS bad at mathematics but witty with knowledge of astronomy and geography. A pseudo-infinite flow math breakthrough game. There are no complicated and obscure math problems. It is very easy to understand at a glance!Content tags: Traveling through time and space Infinite flow sweet and refreshing text┃ Search keywords: Protagonist: Tu Hua, Su Gechi (unknown x) ┃ Supporting role: