Chapter 292 (1/2)

Chapter 295

Cheng Nuo simply glanced at the topic, and he had the answer in his heart.

Find a piece of paper, Shua Shua a a few times, and write the proof steps on it.

Because F2 (x) = f [f (x)] = 5 (5x + 2) + 2 = 52X + 5 × 2 + 2, F3 (x) = f [F2 (x)] = 53x + 52 × 2 + 5, and (5N, 2011) = 1, so 】

the proof process is not too complicated. The main difficulty of this problem is that it is difficult to think of Fermat's theorem. After writing, Cheng Nuo directly took photos to Chen Gong and sent the answer.

Almost five minutes later, Chen Gong sent a message.

”Thank you very much! I really don't know what to do without you. ”

Cheng Nuo replied coldly: ”it doesn't matter, it should be!”

”In the future, there are still a lot of questions to ask the senior students for advice, but I'm sorry to let the senior students free of charge in order to solve the confusion.” Chen Gong typed, ”schoolmaster, if it's not like this, I'll treat you to a big meal when you are free. It's compensation for you. ”

”As for the location Let's make it at the rose lovers Hotel Downtown

Rose? lovers? hotel?!!

Cheng Nuo is not calm now. He typing with trembling fingers, ”no No, brother. Your kindness That schoolmaster is good at it, but I forget about the dinner. Really Forget it

”Oh, well.” Chen Gong looks resentful over there.

But even if there is resentment again, Cheng Nuo can't promise to go!! This special, but related to their own happiness ah!!!

Finally, Cheng Nuo turned on the computer and cracked the code. Two days later, he delivered the lecture.

…………

Two days later, the auditorium of Qingcheng No.2 Middle School.

The auditorium was set up a few days ago, with banners hanging high on the stage.

”Warmly welcome Cheng Nuo, the No.1 student in the college entrance examination in 2020, to come back to school to carry out study exchange lectures.”

In the first row under the stage, there are all the famous brands of school leaders.

President Jiang Wanmin, vice president Li Guoxing Ma Jin, Dean of academic affairs, etc.

As Cheng Nuo's former head teacher, Comrade Tang was also arranged in the first row and sat down with several school leaders.

The students came in at nine o'clock, and the lecture began one after another.

Since there are only 300 activities in the auditorium, there are more than 300 secondary school students who are willing to come to listen to Cheng Nuo's legendary senior student's lecture. All students can only choose the students who attend the lecture according to the principle of grade first and grade first.

Chen Gong, with the strength of being the first in grade, naturally got the chance easily.

Backstage of the auditorium, Cheng Nuo is under the guidance of a student union student sister for final preparation.

Xuemei: ”schoolmaster, do you need me to make up for you a little?”

Cheng Nuo: ”the school also provides this kind of service?”