Xueba, I beg you to go and escort him quickly!

"Can everyone read the questions and give the answers?"

Yue Pingting immediately waved her hand, "No, no, no! Your brother gave this to me!"

"Before this final exam, I was still a scumbag! So no one came to ask me for advice. I just imitated your brother's thinking when he gave me a lecture, so I told you so."

puff-

Xu Zongyun was broken!

My brother usually talks to you like this?

All so fast!

Do you give ideas directly and let you do it yourself?

This is too strong!

"It's too exaggerated! Sister-in-law! It's true..."

It's a bit exaggerated!

In fact, Xu Heng had told Yue Pingting seriously.

It's just what Yue Pingting thinks, that's it.

"Really!" she said confidently.

Xu Heng rolled his eyes at Yue Pingting, "What the hell! You're talking nonsense!"

Yue Pingting was furious, "Why am I talking nonsense? You said it. I'm too stupid, so you will talk carefully! If I'm not stupid, you can just tell me the way of thinking!"

Xu Heng frowned, "Eh... is there such a thing?"

Yue Pingting said seriously, "Yes! You said it just after you participated in the International Mathematical Olympiad."

"So! Xu Zongyun is so smart, I just need to talk about my thinking, won't it be fine?"

This logic!

Perfect!

Xu Heng nodded, he also felt that there was nothing wrong with being hungry!

It's just... Xu Zongyun will suffer from this.

woo woo woo...

You bully people!

How do you judge me to be smart?

Sister-in-law, you are the top three in the class!

You call yourself stupid, but say my grades are not as smart as yours?

???

Doesn't your conscience ache?

"That... sister-in-law, I still want to ask you, you, you know the answer after reading the question? Do you have an idea?"

"You, this, this, are you the same as my brother?"

Yue Pingting covered her mouth and giggled......

"This question! I have encountered it before. Your brother told me about it before. I remember it! Otherwise, you think that I have the strength to read the questions and give the answer in seconds?"

buzzing...

Xu Zongyun's mind went blank.

It turned out that Xu Heng told Yue Pingting!

But, how can you remember so clearly?

Xu Zongyun's whole body is not well.

Compared with Xu Heng, it is absolutely incomparable!

But now he found that the gap between himself and Yue Pingting was not even a little bit.

Yue Pingting always thinks that she is stupid, and she is the one who still puts in the past that she was the bottom one in her class, and she was the bottom one in her class from elementary school to junior high school to high school.

But in fact, she is much better than Xu Zongyun!

She memorized all the topics Xu Heng talked about!

This kind of memory, can ordinary people compare?

In addition, she not only memorized, she also digested everything Xu Heng said!

Familiarize yourself with all the knowledge points and question types.

Xu Zongyun suddenly felt that his studies were all useless. He was not as hardworking as Yue Pingting at all.

moment!

Xu Zongyun was ashamed.

He lowered his head silently, and began to sort out what Yue Pingting had said to him before.

I finally got a clue, but got stuck several times in the process of answering.

Xu Zongyun handed Yue Pingting his ideas for solving the problem.

Yue Pingting said bluntly, "You are wrong here, here should be if and only if x=100/x, that is, when x=10, the above formula can be established, so mB=10, mA is equal to..."

Xu Zongyun's eyes lit up, and he finally understood.

"Thank you sister-in-law! Thank you! I see."

Continue to follow the train of thought.

After finishing all the questions, Xu Zongyun continued to brush up the questions.

Soon, he ran into another problem.

When handing the topic to Yue Pingting, Yue Pingting took Xu Zongyun's acting paper and pen this time, and began to write and draw.

And Xu Zongyun finally understood that not everyone is like Xu Heng, not everyone can get the questions and come up with ideas in a few seconds.

"Hiss... sister-in-law, what's so great about big brother?"

Yue Pingting, "Worse? Do you count the college entrance examination questions?"

Oral arithmetic... college entrance examination questions! ! !

Xu Zongyun, "It's true! It's impossible..."

Yue Pingting, "Stop, stop! Don't be surprised! Let's look at this question first..."

topic:

Let a be a real number, the function f(x)=2x2+(x-a)|x-a|.

(1) If f(0)≥1, find the value range of a;

(2) Find the minimum value of f(x);

(3) Let the function h(x)=f(x), x∈(a, +∞), find the solution set of the inequality h(x)≥1.

"The first question and the second question are no problem for you, right? Let's go straight to the third question?"

Xu Zongyun, "I..."

Just when he was about to ask the second question, he was still a little confused, but Yue Pingting asked directly.

“x∈（a，+∞）时，h（x）≥1，得3x2﹣2ax+a2-1≥0，△=4a2﹣12（a2﹣1）=12﹣8a2……”

Xu Zongyun began to feel sorry for Yue Pingting.

After Yue Pingting finished speaking the topic, Xu Zongyun couldn't help asking, "Sister-in-law, my brother...is this how I usually give you the topic?"

Yue Pingting nodded, then smiled, "Why, can you feel it?"

Xu Zongyun had heard Xu Heng give lectures, and the two had very similar styles.

Xu Zongyun nodded, but soon, he became melancholy.

These two are so powerful, I am really far behind!

Not to mention Xu Heng, just Yue Pingting is enough for him!

If the first question was assisted by Xu Heng, but for the second question, Yue Pingting figured it out by herself, and it took a very short time!

Yue Pingting, "What's wrong?"

Xu Zongyun came back to his senses and smiled awkwardly, "No, it's nothing, I just think that you are all amazing..."

Yue Pingting looked at Xu Heng, "The main reason is that your brother taught well! Compared with your brother, I am far behind!"

The three sentences are inseparable from Xu Heng.

Yue Pingting snuggled up behind Xu Heng.

He doesn't bother Xu Heng playing games, and he always waits on him.

Xu Zongyun restrained his emotions and carefully digested the topic Yue Pingting told him.

He is very serious...

After finishing all these, Xu Heng just happened to end the game.

Xu Zongyun held up his mobile phone and said, "Brother! Sister-in-law! I have a set of IQ test papers, how about we do it?!"

PS: Thank you [Holy King] [Yu Nuo] for your support! .

Chapter 248

Test IQ?

Xu Zongyun is looking forward to it, especially Xu Heng's IQ, he always feels that Xu Heng can give people an astonishing number.

Xu Heng waved his hand, "Not interested."

Xu Heng was not interested, but Yue Pingting was slightly taken aback.

Xu Zongyun, "Er...brother! This set of questions is very popular recently, I will send it to you! You can take a look!"

"Anyway, there are a lot of questions here that are very nerve-wracking!"

"Really! You should look forward to it anyway!"

"I sent it to you! You can forward it to sister-in-law!"

Xu Heng turned on the phone, clicked on this set of questions, probably scanned it, and couldn't help smiling.

This smile is meaningful.

Afterwards, he handed the phone to Yue Pingting, "Take a look!"

Xu Heng's action made Xu Zongyun stunned, "???"

This is disdain!

Still feel childish?

Or... he can solve all these problems? !

Xu Zongyun thought it over carefully. He felt that the first two hypotheses were very possible, and the third... absolutely impossible!

Yue Pingting took the phone and started to look at the first question.

Xu Zongyun, "This set of questions has stumped many people! The students in our class are spreading the word like crazy! I just got the questions today!"

Yue Pingting, "Then... give it a try?"

Xu Heng would not do it.

It's a sure thing!

As for Yue Pingting, Xu Heng gave her all the questions, so she should give it a try.

The first page of the test paper is completed within 24 hours according to the standard!