After taking the girl home and arranging the enrollment procedures for her, it was almost afternoon.

According to Guo Qu's mother's original intention, she originally wanted the girl to go to the top class, but unfortunately the girl didn't agree, and in the end she was coquettish and sprinkled into Guo Qu's class.

In the afternoon, the girl officially went to school and sat in the last row.

This is not Guo Qu's original intention, but this is nothing, he implements a change of seats once a day in this class, and the first row automatically goes to the second row to sit after a day, and the second row to the third row sits, and so on.

This can effectively avoid the loss of students' eyesight, which has been implemented since Guo went to be the head teacher.

Students love to learn, Guo Go is satisfied, there was a lack of an all-round student in the class before, the girl came, and the student bully also had.

Guo Qu is very satisfied, and now he doesn't have to worry about whether the girl is doing well in the county.

Because when the girl came, it was just half a month after the start of school, and the teachers of each subject were going to start the unit test, and the girl was gearing up, she was used to being the "eldest sister" in school, and now she is trying to pass the exam to establish her prestige.

Guo Qu smiled bitterly, this girl has been like a big sister since elementary school, and now that she has come to a new environment, the heart of being a big sister has begun to move again.

Evening self-study is not a problem, and now the three teachers, because the students began to love learning, they no longer avoided the evening self-study, but their evening self-study no longer let students learn, but began to teach students the knowledge of the first year of junior high school.

The girl is very disgusted by the comparison, because in her opinion, evening self-study is the time she takes to do serious questions in a day, but now it is occupied by this group of teachers.

However, after learning that the learning foundation of the first class of classmates is poor, this is what Guo asked the teachers to do, the girl did not complain about the teacher, she wanted to pass this exam even more, establish the appearance of a scholar, and then become the eldest sister, so that the whole class knew how good she was, and then she could help her brother.

Since she has been kissing Guo since she was a child, she always sees Guo Qu's things as her business, and what Guo Qu wants to do, she also wants to work hard to help Guo Go.

However, everything depends on strength, especially in this class that wants to study, she must pass exams to establish her prestige.

There is no way, in this education system of "examination and examination, the magic weapon of the teacher, the lifeblood of the student", those who want to learn well, what they admire most are those with good grades.

It was decided so happily, the girl was very happy, sat at the last table, and was seen by the teacher in the class with her smile.

"Huh, what class is this from, why haven't I seen you before?"

This class is a math class, as a teacher, standing on the podium, if there is a small movement below, it will naturally attract his attention at once.

"Teacher, I'm new here, I just transferred today, my name is Guo Xiaojing. The girl looked very down-to-earth and generous, stood up and introduced herself.

The teacher didn't know that this girl was Guo Qu's sister, in other words, he didn't know her.

So the girl was said.

"What were you laughing at, this classmate?"

The girl's eyes rolled, she was very smart, and knew that the teacher was trying to embarrass her, so she said, "The teacher spoke well, better than my previous math teacher, so I smiled happily." ”

"Where did you study before?" the teacher couldn't help but laugh, he met a good person, but it was also people's ability to say these words that made him happy.

"Yucai Middle School. ”

"Oh?!" The teacher was moved, he wanted to be admitted to the city to teach several times, but unfortunately he didn't succeed, this Yucai Middle School is his goal, because the treatment there is good.

This girl is interesting.

This person, the most afraid of being compared, and also likes to compare the most, he is better than the teacher of Yucai Middle School, although the math teacher tried to refrain as much as possible, but he still laughed.

"Ahem, since you are from Yucai Middle School, you must be tested. So the teacher came up with a math problem, which was still in the second year of junior high school.

Knowing that a,b are the squares of the unary quadratic equation x-2x+p=0, and a is multiplied by b=-7, then the square of a + 2b = ?If the square of the equation x about x - 2(1-k) x + the square of k = 0 has the real number c,d, then the range of the values of c + d is ?if ab is not equal to 1, and the square of 5a + 2002a + 9 = 0 and the square of 9b + 2002 times b + 5 = 0, then the value of b a is ?

This question was written on the blackboard, and the other students were confused and felt clueless.

The girl is different, as a student of the best middle school in the county, the second year of junior high school is in the third year of junior high school, which is the norm, and even the second junior high school student who comes out of Yucai Middle School, even if he takes the high school entrance examination and puts it in the township middle school, he can get the top dozens of rankings.

The girl walked up and thought about it, she didn't know how many times she had done this type of question.

The reason why I think about it is to look less shocking, and at the same time, it is also to arrange the shift neatly.

A real scholar has already figured out how to typeset before doing the question!

After thinking about it, the girl picked up the pen and began to write:

1. According to Veda's theorem: ab=p/1=p=-7, so the original equation is: x^2-2x-7=0 The two roots of the solution are: a=1+2 root number 2, b = 1-2 root number 2.

or b = 1 + 2 root number 2, a = 1-2 root number 2 so: a^2 + 2b = 11

2. Because the original equation has a real root, its discriminant formula is greater than or equal to 0.

i.e.: Δ=b^2-4ac=4(1-k)^2-4k=4-2k>=0,

The root of the first equation is: a=[-2002+(2002^2-180)]/10, or: a=[-2002-root(2002^2-180)]/10

The root of the second equation is: b=[-2002+(2002^2-180)]/18 or: b=[-2002-root(2002^2-180)]/18

Because: ab is not equal to 1, so a and b must take the same sign, from which we get:

a/b=[-2002+root(2002^2-180)]/10/[-2002+root(2002^2-180)]/18=9/5a/b=[-2002-root(2002^2-180)]/10/[-2002-root(2002^2-180)]/18=9/5.

The students below looked at it blankly, and the math teacher nodded again and again, and after the girl was done, she said, "Yes, yes! ”

The girl lowered her head a little embarrassed, although she was a top student, she was always a minor, and she was still a little embarrassed in the face of the praise of the math teacher.

This level is passed.

Time passed, and soon I got out of the evening self-study.

The girl went to Guo's office to find him, and then went home together.

On the way, the girl and Guo went to talk about what happened in the evening self-study, and Guo went to listen with a smile.

Then his phone rang and the math teacher called.

"What's wrong, Mr. Jin?" asked Guo Qu with a smile.

"You have a good seedling in your class, I made a question, and she only took five minutes to make it, which is very powerful, it seems to have the same surname as you, called Guo Xiaojing or something. ”

Guo went to turn on the speakerphone, and after the girl heard it, she smiled happily, in front of Guo Qu, she never felt embarrassed, and even said it through the math teacher, she was still a little proud.

Guo went and touched the girl's head, the girl was a little floating, with an expression of "praise me, praise me".

"Ahem, Mr. Jin, Xiaojing is my sister. ”

"......" was silent on the other side of the phone, and then naturally flipped through the words of praise, Guo Qu was a little embarrassed to hear it, and the girl still had the same expression of "praise me".

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