Uk. Chúc bạn luôn luôn học giỏi nha 

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\(\orbr{\begin{cases}x=1\\y=-2\end{cases}}\)

\(\orbr{\begin{cases}x=-1\\y=2\end{cases}}\)

\(\orbr{\begin{cases}x=2\\y=-1\end{cases}}\)

\(\orbr{\begin{cases}x=-2\\y=1\end{cases}}\)

Hi everybody . My name is Nhu Y, I am 11 years old and I am a student of grade 6B junior high school in Hai Lam. My favorite subject is English. My favorite sport is badminton, .... I usually watch TV in my free time. I go to school from Monday to Saturday. I always do my homework every morning. I love my family . My family has 7 people: three, me, 3 brothers, 1 head and me. My husband is a farmer, my mother too.My first brother is an electrician, his second brother is a mechanic, his third brother is a bricklayer. My sister is a worker. and i am a student, ...

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# MissyGirl #

Dịch là:

Hi everybody . My name is Nhu Y, I am 11 years old and I am a student in grade 6B Hai Lam secondary school. My favorite subject is English. My favorite sport is badminton, .... I usually watch TV in my free time. I go to school Monday through Saturday. I always do my homework every morning. I love my family. My family has 7 people: three, mother, 3 brother, 1 sister and me. My father is a farmer, so is my mother. My first brother is an electrician, his second brother is a chameleon, his third brother is a nephew. My sister is a worker. And I'm a student, ...

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có bị sai về ngữ pháp ko thế quỳnh

My favorite subject in school is Mathematics. It is my favorite because I never have difficulty with it and always get good marks in tests.
I suppose I am lucky to be born with a clear-thinking brain. So ever since young, manipulating numbers and figures came easy to me.
The wonderful thing about Mathematics is that, besides some formulae, there is nothing else to remember. Every step in solving a problem is done logically. Other subjects like History and Geography require a lot of memory work. Remembering dates and other facts is hard work compared with the ease and simplicity of mathematical reasoning.
While Mathematics is simple to me, some of my friends have great difficulty with it. I do not really understand why. They get stuck with simple problems and often give up. So I help them out when I can.
The one advantage I have in being good in Mathematics is that I do not have to spend a lot of time on it. Homework and tests are a breeze. So I have plenty of time left over to study other subjects. Sometimes I feel sorry for my less fortunate classmates who get scolded in class for not completing their Mathematics homework.
Anyhow I have come to realize that human beings can be so different in their abilities while they look similar otherwise. Some of us are lucky to be good in some things. Others may not be so lucky.

Quan hệ từ: không chỉ...mà còn.

Công dụng: biểu thị quan hệ tăng lên.

QHT:không chỉ-mà còn biểu thị quan hệ tăng tiến

tập viết vietkey cái coi,đọc mà thấy ức chế

Cái này phải phụ thuộc vào cậu có chăm chỉ hay ko vì có câu : " Thiên tài chỉ có 1% là trí thông minh còn 99% còn lại là sự nỗ lực rèn luyện " nên cậu phải học thật chăm chỉ mới học giỏi toán được !! ^^

hihi.cam on nhiu nha

=>x^2+14x+49-x^2+3x=83

=>17x=34

=>x=2