Chapter 1317

This is a calculus in higher mathematics.

The title is: x? - 2XY + y? = 6, determine that y is a function of X, and find y ".

Emmmm, you may not believe it. At your level, it's better to start with outstanding mathematics.

However, when this sentence was spoken, it was swallowed by Qin Luosheng.

Just give him a chance.

After thinking about it, Qin Luo asked for a pen and paper from his pocket.

As a famous Xueba in the world, he brings pen and paper not only for signature, but also for solving problems anytime and anywhere.

2x-2y-2xy’+3y²y’=0

Y’=2x-3y/2x-3y²

y”=（2-3y’）(2x-3y²)-（2x-2y）（2-6yy’）/（2x-3y²）²

……

In less than a minute, Qin Luo has finished solving the problem.

"Do you understand?" Qin Luo turned to look at Li Shaolin.

"Cough, understand!" Li Shaolin nodded seriously.

Qin Luo chuckled and said, "tell me who I wrote and what?"

What is it about?

Li Shaolin's mouth was in a fit of frenzy.

Silence for a long time, Li Shaolin seriously said: "number!"

Magic number!

No, I know it's numbers!

No, that's not what I'm talking about!

"Well, I don't think advanced mathematics is suitable for you. You'd better learn from junior high school."

Speaking, Qin Luo points to open Baidu, search out a "seventh grade" mathematics textbook.

It is not that Qin Luo despises Li Shaolin, but Li Shaolin's strength is there. Qin Luo decides to teach students according to his aptitude.

Alas, there are not many excellent teachers like me

"Thank you, Miss Qin!"

With his mobile phone, Li Shaolin was overjoyed.

Soon he had another problem.

"Mr. Qin..."

Looking at this geometric equation, Qin Luo smiles bitterly.

You may not be able to say so. I think it's necessary for you to start in primary school

……

When Qin Luo solved the problem, in the corner not far from qinluo, a few burning eyes were staring at Qin Luo, or Li Shaolin beside him.

At this moment, Qin Guoyang set off a wave in his heart.

To tell you the truth, when Chen Qiangsheng said Li Shaolin prodigal son turned back, Qin Guoyang had a little doubt in his heart.

After all, it is difficult for a person who is used to playing to be interested in learning.

But now, when he saw Li Shaolin holding the textbook, learning mathematics, Qin Guoyang was shocked on the spot.

The sun can really come out from the West!

At this moment, he wanted to know why.

Thinking of this, he waved to Qin Guotao.

"Guotao, come here." Qin Guoyang said.

"Dad?" Three steps at a time, Qin Guotao came to his father.

"What the hell is going on here?" Qin Guoyang asked.

What's going on?

Hearing Qin Guoyang's words, Qin Guotao's mouth twitched.

It's hard for him to say what's going on.

Is it said that there is a spark of learning?

Or is mathematics able to exercise logical relations and turn people into martial arts masters?

Either way, it sounds like a storyteller.

After a long hesitation, Qin Guotao bit his teeth and said, "Dad, I said Li Shaolin's brain is broken. Do you believe it?"

Letter!

Believe in a hammer!

Hearing his son's words, Qin Guoyang frowned and said in a sharp voice, "speak to others!"

"Er, Qin Luo said that mathematics can exercise logical thinking and make people better. As a result, Li Shaolin believed it..." Qin Guotao said.