You say you have an iron will, are you serious?

Chapter 13 A Math Problem
Pingfu County No. [-] Middle School, Grade [-] and Class [-].

"Lesson~"

"Stand up~ Hello, teacher~"

"Hi students~"

As the head teacher Qiu Wenjie walked into the classroom from outside, the first class of the new day began. Qiu Wenjie quickly got into the main topic of the lecture: "Everyone, please turn to page 35. Today we will talk..."

Off the stage, Zhao Mo looked at the system panel.

"Another blind box?"

Seeing this reward, Zhao Mo immediately started looking forward to it.

The last BUFF was of great help to him.This time, there may be some good luck, too.

Thinking this way, he immediately chose to open the blind box.

"Ding, congratulations to the host for getting a math problem. Welcome to come back next time."

As the voice sounded, a math problem appeared in his mind.

"..."

Zhao Mo was speechless for a moment. After he came to his senses, he could only say "good guy" in his heart.

This is such a good guy. How much do you love him that you would send him exercises to do when he is already having a hard time studying?

He looked at it for a while and found that this was a solution question. The question was not complicated, but the information given was too little and the answer was a bit outrageous. He was confused after looking at it for a while. Know where to start.

After a few more glances, he began to feel dizzy and confused by this question.

"How should I solve this problem? The best in math in the class is another female student, Liu Zheng, right? She is the math class representative. Do you want to ask her?"

"No, if I ask her, I will get the misunderstanding again. It doesn't matter to me, but Liu Zheng, a little girl, has a bad reputation, so I'd better ask my boss~"

"Wait a minute, I'm not good at thinking. Why do I want to ask questions when I encounter a problem? I should find a way to solve it myself!"

Different thoughts flashed through Zhao Mo's mind, and he finally calmed down and decided to find a way to solve this problem on his own. This was also an exercise for himself.

It is the act of the brave to rise up in times of trouble.

Zhao Mo exited the system, looked at the blackboard on the podium attentively, listened to the teacher's lecture, and began to listen carefully.Don't be in a hurry to solve problems, and listen carefully is the way to go.

After studying these days, Zhao Mo has a summary of himself.

Except for mathematics, he thinks he has made great progress in every other subject.

The one who has made the most progress is Chinese, which is his mother tongue. Relying on his memory and the experience of two generations of people, his recitation and understanding of articles have made huge progress compared to his previous life at this period.If he took the college entrance examination at this time, he estimated that he would be able to get a good score of over [-] points.

Followed by biology, English, chemistry, and physics.

Living things also have a lot of memories, such as various chromosomes and hybridization.

Stop speaking English, memorize the words and vocabulary, and read them at the same time.

In addition to memorizing a large number of formulas in the two courses of chemistry and physics, the rest is to repeat practice questions and master logic.The difficulty level is naturally several levels higher than the three courses of biology, English and Chinese.Especially in physics, I have gone to at least two or three levels.However, although he felt the difficulty of learning these two subjects, his progress was visible to the naked eye through memory and hard study.

Mathematics is different. Mere memory cannot help him improve his math scores, and the knowledge of two generations is useless. If he can't do math, he just can't do it.

Through past memories and review during this period, so far, he has only regained his previous level of mathematics, not completely incompetent.

Therefore, he has been the most serious about math class during this period. He will write down every word of Qiu Wenjie's old class, and then study it over and over again in his free time.

"...There is an exercise question here. Can anyone step forward and answer it?"

At this moment, Qiu Wenjie on the podium wrote a question on the blackboard, then turned around and looked at the students under the podium and asked. His eyes glanced back and forth several times, and everyone felt as if the eyes were looking at themselves.

Zhao Mo was no exception. He also felt Lao Ban's eyes looking at him intentionally or unintentionally, and thought to himself: "You see that I have changed a lot during this period, so you want me to go up and answer it, right?"

He glanced at the question on the blackboard, "Given that the real numbers a, b, c, d satisfy ab=c+d=1, what is the minimum value of (ac) + (bd)?"

It seems difficult.

His previous level of mathematics has returned, and he naturally understands the meaning of this mathematics problem. It does not seem difficult at first glance, as if all the conditions are given, and he can solve it by just doing arithmetic.

However, when he started to calculate on the scratch paper with a pen, he discovered that it was very difficult to calculate simply by relying on stupid methods. The calculation was very complicated and there was no need to think about it in a short time.

"Is there any other simpler and more effective way?"

Such a thought flashed through Zhao Mo's mind.

The next moment, a sweet and clear voice rang: "Report, I can answer it~"

Zhao Mo followed the sound and saw that to his left, in the third position in the row near the window, a thin girl with dark skin and a pair of black-rimmed glasses stood up. She had short hair reaching her shoulders and looked at Despite his unprepossessing appearance, he is none other than Liu Zheng, the math class representative.

Zhao Mo had no impression of this little girl. If he hadn't been reborn, he wouldn't have remembered that he had a female classmate named "Liu Zheng".His appearance is not impressive, his academic performance is not outstanding, and his personality is well-behaved, so his sense of existence is naturally not that much.

On the podium, Qiu Wenjie heard Liu Zheng's voice and looked around at everyone in the classroom. Seeing that no second person came forward to answer, he could only nod and said: "Okay, you do it~"

Liu Zheng's voice sounded again: "This question can be answered by contacting the knowledge points of hyperbola. The minimum value of (ac) + (bd) is the point on the hyperbola ab=1 and the point on the circle c+d=1 The minimum distance squared, that is, the squared distance between the two points (1, 1), (√2/2, √2/2), so it is equal to 3-2√2.”

"correct answer"

Qiu Wenjie immediately gave his verdict, then asked Liu Zheng to sit down, and then said: "Teacher hopes that in addition to Liu Zheng, other students will also take the initiative to stand up and answer questions..."

"So this is the answer!"

Zhao Mo was amazed and couldn't help but refresh his understanding of Liu Zheng. He was indeed a representative of the mathematics class. His mathematical knowledge was not only solid, but he could also be used flexibly.

At this time, a voice came from the side: "I was scared to death. I thought they were asking for my name. I didn't even understand the question."

Zhao Mo glanced over and saw Li Shijie, his deskmate on the left, wiping the sweat from his forehead.

Soon, one morning passed.

During lunch, Zhao Mo finished his meal and prepared to go back to the classroom to study and continue fighting.As soon as he left the cafeteria door, he happened to see Liu Zheng walking toward the cafeteria with a lunch box, and he was startled.

Then, after hesitating for a while, he walked over and stopped in front of Liu Zheng, saying hello with a smile: "Liu Zheng, why did you come down to eat just now?"

Liu Zheng looked at each other and lowered his head unnaturally: "Yes, there are fewer people now, so it won't be crowded."

Her voice was a bit muffled and she looked very shy. She was not at all as sweet and straightforward as when she answered questions in math class.

"That's it~"

Zhao Mo didn't pay attention to these details. He nodded, and then asked his real purpose: "Liu Zheng, actually I want to ask you, do you have a good method for doing so well in math?"

When they were just having dinner, he asked other students about Liu Zheng's math scores and found out that her math scores were above 120 points in every mock test, ranking first in the class, which can be said to be very good.

Liu Zheng's answer was to shake his head and whisper: "No, just like you, I listen to the teacher's lectures and then practice the problem sets."

"Oh~ thank you~"

Zhao Mo was not disappointed. He thanked him and returned to the classroom thoughtfully.

As everyone knows, behind him, Liu Zheng turned around and glanced at his walking back, with a complicated expression on his face. He bit his lip and said, "What's the use of asking me? Just ask Yang Jing~"

She kicked her right foot on the ground, not knowing what, then turned and walked into the cafeteria.

"Jingjing, look over there, Zhao Mo and Liu Zheng are talking~"

Neither of them noticed that at another exit of the cafeteria, Yang Jing and Li Yunxia, ​​who had just finished eating, happened to see them talking. Li Yunxia couldn't help but poked Yang Jing with her hand, signaling her to look quickly.

Yang Jing looked over and couldn't help but asked curiously: "What next?"

Li Yunxia said hurriedly: "No, aren't you angry? Then Zhao Mo said he likes you, and now he goes to hook up with Liu Zheng again. Isn't it too troublesome?"

Yang Jing said angrily: "You live by the seaside? You are so lenient! I just say something, what can't I say between classmates? You, don't be surprised. Besides, who is he talking to? Whoever he likes is his freedom, and it has nothing to do with me, so don’t blame me."

Li Yunxia said bitterly: "Okay, I won't say anything anymore. It's true that the emperor is not in a hurry and the eunuch is in a hurry~ Everyone is saying that Liu Zheng has a crush on Zhao Mo~"

Yang Jing smiled, scratched her face and said, "Yes, you are the eunuch, haha..."

The two women soon left laughing and joking.

The mood of students is like the weather in spring. Sometimes it is good, sometimes it is bad, but it comes and goes quickly.

On campus, men and women chatter, fight, and laugh one after another. Although noisy, it is also filled with the atmosphere of youth. It is the most beautiful season in a person's life.

Zhao Mo didn't have time to experience this beautiful season. On the way into the classroom, he saw the laughing and playing classmates, juniors, and juniors. He just showed a slightly envious and doting smile, and then after walking into the classroom They all converged and started to think of ways to solve the math problems that came out of the blind box.

He took out a pen and paper, recalled all the mathematical knowledge he had learned, and began to calculate.

His foundation in mathematical knowledge was not solid, and he was not quick-witted, so he took a stupid approach at first and used the most basic knowledge points to solve the problem.

Soon, a piece of scratch paper was filled with writing.

Then, the second one, the third one...

bell bell bell...

The afternoon class bell rang, waking up Zhao Mo.

He raised his head and glanced at the calculation paper on the table. He turned over it over and over again without knowing how many knowledge points and paths he had used. In the end, they all turned out to be dead ends. He could no longer solve the key points.

"I still don't believe it~"

Zhao Mo said something fiercely in his heart.

(End of this chapter)