Chapter 1

Beishan NO.4 middle school, mathematics class.

Li Wei's face was livid, and he glared at Qin Luo: "Qin Luo, get up and talk about how to solve this problem?"

As he spoke, Li Wei wrote a mathematical equation on the blackboard.

I dare to sleep in his class. I just don't know how to write dead words.

"It is known that the ellipse x square + y square = 1 and the straight line X-Y + B = 0 intersect at two points of PQ, and O is the origin of coordinates. If OP is perpendicular to OQ, calculate the value of B and write the process."

Qin Luo chrysanthemum a tight face muddled.

"The strongest Xueba system has been opened, with a progress of 99%..."

"System installed successfully."

Who is it? Who's talking? Qin Luo looked around.

"Drop, the host thinks carefully and gains 1 point of learning hegemony points."

System! At this moment, Qin Luo was excited. As an old bookworm of the 21st world, he was really familiar with the system.

This is a necessary part of the protagonist. All the people who get him become the existence of the bull.

However, Qin Luo didn't expect that he also got the system

thinking of this, Qin Luo's heart beat faster.

"Don't stand still and do it quickly."

"Do you think you are a genius, like Huang Zhen, can sleep in class with full marks?"

Huang Zhen, the son of the teaching director of No.4 Middle School, has been a real favorite since he stepped into NO.4 middle school. His academic performance has never been lower than the top three. Every time he got to the bottom of the exam, he was in the top ten in the whole city and hundreds in the whole province.

He has always been the sharpest weapon in Li Wei's mouth.

"Isn't it just a problem? It's not that you can't do it. " Qin Luo gave Li Wei a satisfied look and went straight to the platform.

From today on, he is no longer an ordinary person, but a person with a system.

Pick up the chalk, Qin Luo suddenly puzzled. Although he has a system, he doesn't know how to use it.

"Mr. Li is one of the top ten math teachers in the city. Even I am not sure about his problem, he? Hehe, give him ten days, he can't do it right. " Huang Zhenla shrugged his eyes and swept Qin Luo lightly. His eyes were full of disdain.

For this problem, he only needs 10 minutes to work out, but for Qin Luo? Maybe it's a lifetime of insurmountable gully.

"Ha ha ha, Qin Luo, do you want to show you our handsome Huang's notes? Maybe you can find a way to solve the problem? "

“……”

For a moment, the classroom is full of laughter.

"The rapid death of host brain cells is detected, and the system automatically calculates the decisive method."

"Cost of learning: 1 point"

suddenly, a short and systematic prompt sounds. The picture in front of Qin Luo completely changed, and the geometric equation was no longer an astronomical number that could not be understood, but became extremely simple.

Hands flying, a series of numbers appear on the blackboard.

The straight line X-Y + B = 0, that is, y = x + B, let P (x1, X1 + b)

The solution is as follows: √ 2 < B < 2

obtained from Weida's theorem: "X1 + x2 = - B

The comprehensive result is b = 1 or B = - 1

"look, Qin Luo started writing!"

"Oh, what's more, it's written in a good way."

“……”

"What if I start writing? Mathematics is not English. You can score as long as you write it. "

Hearing the students' movement, Li Wei turned his head slowly.

The next second, his eyes widened.

The logic is clear, the steps are clear, the process is perfect, and most importantly, the answer is correct.

Qin Luo actually worked out the answer!

He knows the difficulty of his questions. Even Huang Zhen, the top student in the class, is very hard to do, not to mention Qin Luo.