Fu Lingyan looked at Fang Chao beside her and said, "What will you do about this question?" ”

Fang Chao nodded subconsciously and said, "It's okay, it's quite simple." ”

“……”

I feel that I can't chat well anymore, Fu Lingyan is so tired, she used to be the first in the junior high school class, and she was also the top five in the year, she was a real scholar, but in front of Fang Chao, she couldn't find the slightest sense of existence.

Everyone here is strong, and the elites selected by various middle schools may not be worse than her in terms of comprehensive strength, Fu Lingyan felt a trace of pressure, especially in front of her own tablemates, this pressure is even stronger.

Mom, am I mentally retarded?

Fu Lingyan had such an idea in her heart.

And while Fu Lingyan had such an idea, Fang Chao was also surprised, he didn't expect that there were still four other people who would do this question, what his mother said was really right, he should be low-key, how did he first arrive, he had just entered high school, and there were five people who could do a problem given by the math teacher at the same time, how could this not show that these people were strong, and he might not be much stronger than these people.

It's so interesting!

Where will it reflect its strength?

Thirty years in Hedong, thirty years in Hexi, don't bully young people into poverty.

You math gods are waiting for me, and it won't be long before I'll knock you all down!

Fang Chao, who had just finished military training, felt a little tired in all aspects of his body, but in terms of spirit, he was definitely as excited as if he had been beaten with chicken blood.

High school math, it's so exciting.

That's right.

In this way, he will be able to arouse his interest.

Only difficult things will be more exciting when challenged, making people so excited that they can't sleep, and even the blood in the body is constantly boiling.

Zheng Yihang obviously didn't expect that there would be five people raising their hands at the same time on this topic, if there were only one or two people, then he could still understand, it seems that this year's students are better than he thought.

He nodded involuntarily, and then said, "Then all five of you come up and solve this math problem for me." ”

"Yes."

"Yes."

"Yes."

“……”

The five of them got up at the same time and glanced at each other, all of whom saw sparks in each other's eyes.

These individuals are all enemies, and I thought that I was the only one who could solve them, so that I could pretend to be a forced force in the first lesson of mathematics, but who would have thought that this force would be divided into five parts, and each of them would take away some of the attention of these people.

Since it is not the only one, then it is necessary to be the only one, and compare all these individuals to each other.

Fang Chao is so excited, come on, come on!

All five of them were given chalk at the same time, and then each of them was divided.

Five-legged momentum!

∵(CRA)B∩{2}

∴2∈B

Fang Chao glanced at the others, I'll go, these people are writing so fast, are their hands convulsive?

He didn't dare to slack off, and hurriedly sped up.

∵B{x|x2-5x+q=0} has 4-10+q=0 and ∴q=6.

∵B{x|x2-5x+6}={2，3}

Assuming that there are 3 in the CRA, then (CRA)∩B={2,3} contradicts (CRA)∩B={2}.

When the five people on the podium were writing the answers, the students below were confused, and some ideas came out of the way that I was stupid or not, and it was irrepressible.

City No. 1 Middle School is really the place of Crouching Tiger, Hidden Dragon, all of them are so powerful, and they are all so good at pretending!

Are we going to spend the rest of our days in this forced sea?

It's too hard......

I want to cry.

One by one, the pride of the sky, just on the first day of formal school, has an attitude of doubting life.

At this moment.

The five people on the blackboard wrote down the rest of the answers almost in no particular order.

∵3∈R and 3∉(∁RA)

∴3∈A, from A={x|x2+px+12=0}, there is 9+3p+12=0

∴p＝－7

∴p＋q＝－1

When the five finished writing, the chalk was in their hands.

Zheng Yihang looked at the answers of the five people, and then said, "Very good, all correct, what are your names?" ”

"Lin Hai."

"Fu Shaohua."

"Pan Mingming."

"Guo Xiling."

"Fang Chao."

Yes, among the five, there is also a girl, the woman does not let the eyebrows, above the level of mathematics, is not worse than the other boys, it can be said that the second place put down the chalk, only a few tenths of a second slower than the first, there is no doubt about the strength.

Who says women are inferior to men? At least Guo Xiling doesn't think that he is worse than these people.

"Okay, I've made a note of the five of you, so go back to your seats first."

Zheng Yihang instructed to go down, the topic he just came out with was not the content involved in junior high school, but the knowledge of high school, it can be seen that these five people still have some mathematical knowledge after graduating from junior high school, it may be self-study, it may be to ask for a tutor, but this is all a good thing, there is no harm in contacting first.

But these people still can't do it, some genius students, in their early teens, can get such grades.

The expressions of these five people just now were obviously very satisfied with themselves.

Are you satisfied? Is there a little more pursuit? It's just disappointing.

Then, Zheng Yihang smiled again, "Okay, after the test just now, then I'll tell you another story." ”

"Teacher, you say."

"What's the story?"

"I didn't expect you to tell a story from a math teacher...... I'm looking forward to it......"

Zheng Yihang turned around and wrote on the blackboard 1.052=1, 1.053=1.16, 1.054=1.22, 1.055=1.28.

"Huh? What is the teacher writing? ”

"I don't understand, isn't he going to tell a story?"

"What are you doing now?"

"Are high school math teachers so mysterious?"

A group of people chattered, and only a few stared at the numbers on the blackboard, apparently thinking that the math teacher couldn't be as simple as just telling a story.

After writing that line of numbers, Zheng Yihang said, "In 2008, a city built 1 million square meters of new housing, including 250,000 square meters of affordable housing, and the relevant departments plan to increase the area of new housing by 5% each year in the future compared with the previous year, of which affordable housing will increase by 100,000 square meters per year." Under this plan, what is the first year when the area of affordable housing built in that year exceeds half of the area of new housing in that year? Okay, students, refer to the data on the blackboard, and then tell me what year it is from 2010 to 2103. ”

"it, it!!"

"Teacher, you're cheating us!!"

"There is no question for this question, how do I answer this? It's not that hard...... I'm going to cry, Mr. Zheng is so good at playing......"

"Can anyone tell me what the math teacher just said?"