原式=7*4*m^3p÷7m^2
=28m^3p÷7m^2
=(28÷7)*(m^3÷m^2)*p
=4mp
猜你喜欢
- 1在公路上,一辆长4米,速度为110㎞/h的跑车准备超越一辆长12米,速度为100km/h的客车,需要几秒?
- 2He always goes to work by bus last year.Does your brother often go to schooi on foot last weekend
- 3In Chinese,the family name is f and the given name is l
- 4Many people want to become famous.How can they become famous?该怎么回答?
- 59.Had you listened to the doctor,you _____ all right now.(标准)高中英语虚拟语气 单选题.
- 6work,teach,guess,clean的第三人称单数形式!
- 7you have to be six years old before you to go to school
- 8look!they are _填什么单词__chess over theree chess over there.
- 9( )can I get to your school?Take a bus.
- 10威尼斯的小艇小练笔怎么写?(新安江)