Ánh sáng yếu lắm , với cả chữ hơi khó đọc , hay viết tắt , nếu chứ khó đọc thì hãy viết mực xanh nhìn sáng với cả dễ đọc hơn nhiều đó bn .viết lại đi nếu biết mik trả lời cho nha okay !

dễ nhưng ko bit làm

\(3n-2\inƯ\left(15\right)\) \(=\left\{1;-1;3;-3;5;-5;15;-15\right\}.\)

\(\Leftrightarrow n\in\left\{1;\dfrac{1}{3};\dfrac{5}{3};\dfrac{-1}{3};\dfrac{7}{3};-1;\dfrac{17}{3};\dfrac{-13}{3}\right\}.\)

Mà \(n\ne\dfrac{2}{3};n\in Z.\)

\(\Rightarrow n\in\left\{1;-1\right\}.\)

A: Oh! Look at that house, it's so beautiful.
B: Yes, It's C's house. It's bigger than my house and yours, too.
C: Hello guys, what are you talking about?
B: We are talking about your house. Uhm...Hey C, How many rooms are there in your house?
C: There are 10 rooms in my house and a big garden behind its.
A: Is it expensive?
C: Yeah, It's nearly 1,5 billions.
A: OMG, your house is more expensive than mine. My house only need about 1 billions to buy it!
B: Your house looks like very convinient.
C: You are right. Do you see our school? It takes me 5 mins to walk to school, so it's the reason why I never late for school.
A: Really? I have many things not as well as you.....
B: It's ok A. You can have it when you learn better than now

Có gì sai sót bạn cứ nói nhé, mình chỉ kịp nghĩ ra đúng đủ 12 câu thôi bạn ạ :)))))

A: Oh! Look at that house, it's so beautiful.
B: Yes, It's C's house. It's bigger than my house and yours, too.
C: Hello guys, what are you talking about?
B: We are talking about your house. Uhm...Hey C, How many rooms are there in your house?
C: There are 10 rooms in my house and a big garden behind its.
A: Is it expensive?
C: Yeah, It's nearly 1,5 billions.
A: OMG, your house is more expensive than mine. My house only need about 1 billions to buy it!
B: Your house looks like very convinient.
C: You are right. Do you see our school? It takes me 5 mins to walk to school, so it's the reason why I never late for school.
A: Really? I have many things not as well as you.....
B: It's ok A. You can have it when you learn better than now

bài j vậy bn

? đề đâu

chiu ma lai

viết lại đi lắn nót vào mới đọc được và hiểu được để mà trả lời chứ viết rõ chữ vào đừng viết tắt

\(f,=\left(5^2+3\right):7=28:7=4\\ g,=7^2-9+8\cdot25=49-9+200=240\\ h,=600+72+18=690\\ i,=5^2+5-20=10\\ j,=45-28+83=100\)