"It's okay, then let's borrow it again next time." Chen Xuan waved his hand and said with a light smile.

"Well, that's all there is to it." Aunt Library smiled lightly, "Don't worry, I will keep this book for you, and I won't let people borrow it." ”

"Then thank you Auntie." Chen Xuan said gratefully.

"Thank you, no thanks!" Aunt Library waved her hand, "It's the first time in so many years that Auntie has seen someone so obsessed with mathematics, this little thing will definitely help you." ”

"That's going to be the case first, I'm going to class." Chen Xuan thanked him, and then left the library quickly.

Chen Xuan, who was running past, suddenly thought of a terrible fact, he had missed the first class, and the first class was his mother's class......

"I'll go, it's embarrassing, I'm afraid I'm going to be scolded by my mother later." Chen Xuan shook his head helplessly, his mother was very strict when he was in class.

Otherwise, his cheap father would not have been disciplined and obedient.

Following the memory, Chen Xuan came to his mother's office, originally with the resources of the private saki middle school, it was impossible for the head teacher to have a separate office, but thinking about Chen Xuan's background, then everything was possible.

"Knock knock......" Chen Xuan knocked on the door.

"Come in." Liu Lingxi's crisp voice came out.

"Hehe, Mom, that ......" After Chen Xuan walked in, he looked at his mother who was studying math problems, and smiled a little embarrassedly.

To be honest, Chen Xuan can't understand it here, obviously his mother's math is better, but he has to teach Chinese. Of course, the language is also very strong......

"Huh?" Liu Lingxi raised his head, and when he saw that it was his son, he said with a smile, "Stinky boy, what the hell are you fooling around?" ”

"No, I went to the library to read a book." After Chen Xuan felt the murderous aura from Liu Lingxi, he quickly straightened up and said uprightly.

"You stinky boy, don't go to the entrance ceremony, even if you dare to skip class, and it's your mother's class?" Liu Lingxi pinched Chen Xuan's ears and sneered.

"Well, didn't I say I went to the library......" Chen Xuan muttered quietly.

"Are you reasonable?" Liu Lingxi was murderous, pulled up the corners of his clothes, and said coldly.

"No, I was wrong!" Chen Xuan immediately admitted his mistake.

Seeing that his son had a good attitude, Liu Lingxi nodded with satisfaction, and said with a light smile, "Son, what courses did you go to the library to study on your own." ”

Chen Xuan shook his head and said, "I reviewed the mathematical theory knowledge in high school again. ”

"Well, that's right, after all, no matter how high the talent is, you need to understand it more, so that you can go to the next level." Liu Lingxi nodded in agreement, and she agreed with her baby son's idea.

"Let's go report first." Liu Lingxi shook his head helplessly and walked out step by step.

Chen Xuan hurriedly followed behind.

"Knock Knock Knock ......"

A knock on the door interrupted the teacher's lecture in the classroom, and Liu Lingxi beckoned to the teacher who was lecturing.

Chen Xuan stood outside the door and looked at the blackboard through the glass, well, it seemed to be a math class, and it was a female teacher.

"What's the matter, Mr. Liu?" The math teacher said sorry to the classmates and walked out to ask.

"I'm sorry Teacher Ouyang, this is Chen Xuan, because something happened in the morning, so I reported it relatively late, so I will trouble you to bear with me." Liu Lingxi said with a slight smile.

"Hello Teacher Ouyang, I'm Chen Xuan." Chen Xuan stretched out his hand politely and unrefusably, and Teacher Ouyang subconsciously stretched out his hand and shook it.

After seeing Liu Lingxi leave, Teacher Ouyang smiled, "Come in, classmate Chen Xuan." ”

After speaking, Teacher Ouyang walked in first, coughed twice, and the whispers in the classroom caused by the emergency disappeared in an instant.

"Classmates, let me introduce to you, this is also a new classmate, Chen Xuan."

Chen Xuan walked in, stood by the podium, and gracefully saluted his chest.

"My name is Chen Xuan, and I will ask you for more advice in the future."

The black broken hair raised slightly, and a pair of deep black eyes looked at the classmates in front of him with the gentle gaze that Chen Xuan was best at, the handsome facial features, and the background board that seemed to bloom, all of which made these new classmates who met for the first time stunned.

"Good...... So handsome. ”

"Super handsome high school student?"

"It feels like the background is blooming."

"Ah, I really want to fall in love."

"No, I'm in love......"

The silent class suddenly exploded, and both male and female students whispered excitedly at the moment, as if they were excited to have such a classmate.

Chen Xuan smiled faintly, directly blocking these words of admiration and jealousy that came to his ears, and his deep eyes showed a feeling of interest.

At this moment, Chen Xuan saw a completely different face in the middle row by the window, his burgundy eyes were full of surprise, his sexy mouth opened in surprise, and the characteristic double ponytail was particularly conspicuous on the long black hair.

The corners of Chen Xuan's mouth also showed an incredible expression, what kind of dog blood was this unfolding.

"Sit down with me." Ye Lingxuan smiled gently and said generously.

"Okay." Chen Xuan smiled, the two of them knew each other, so they wouldn't be embarrassed.

Seeing that Chen Xuan sat down, Teacher Ouyang also began to talk excitedly, for her, the happiest thing is that the students can understand it, and then draw inferences from each other.

It's a pity, because the school has just started and has just entered high school, the students who have a poor foundation in mathematics look at Teacher Ouyang who is dancing with their eyebrows fluttering one by one.

Only some students with a good foundation in mathematics can barely keep up with Mr. Ouyang's ideas.

Math class was boring, but time passed quickly, and after half a class had passed, Teacher Ouyang paused, looked at the silent classroom, and asked suspiciously, "Do you understand?" ”

"Forehead......" Many students smiled awkwardly, and some of the more naughty students coaxed, "Teacher Ouyang, you speak so well, from shallow to deep, you are really an out-and-out genius teacher." ”

"Really? Do you all understand? Teacher Ouyang seems to be very happy, and the students can understand, which is her best expectation.

The students below looked at each other, not wanting to dampen Teacher Ouyang's confidence, and smiled, "Understood!" ”

"Well, okay, let's continue with this question." Teacher Ouyang smiled happily and continued to explain the topic with his eyebrows flying.

"What, I didn't understand a word, why are my classmates so powerful." Ye Lingxuan looked at the classmates who were cooperating with Teacher Ouyang, and really thought that they all understood, and muttered.

"You're pretty good, too." Chen Xuan heard Ye Lingxuan's muttering voice and smiled.

"I don't understand anything, and this math class feels like a book from heaven." Ye Lingxuan shook her head and said dejectedly.

"In fact, mathematics is very simple, you look at the teacher talking about this problem, in fact, you don't have to think so troublesome, the cosine value of the dihedral angle A-PD-C is negative thirds of the root number three, according to Veda's theorem, it can be proved that the straight line p1p2 is too constant point o, and there is, the value range of a is (1, 1) The equation of C is X²+2y=1" Chen Xuan explained slowly.

(End of chapter)