5) \(\frac{x}{2x-3}+\frac{x}{2x+2}=\frac{2x}{\left(x+1\right)\left(x-3\right)}\)
giải phương trình
\(x^2-2x+7+\sqrt{x+3}=2\sqrt{4+8x}+\sqrt{1+\sqrt{1+8x}}\)
Cho hàm số y=\(\frac{1}{3}x^3+mx^2+\left(2m-1\right)x-1\). mệnh đề nào sau đây sai
Cho hàm số y=\(\frac{1}{3}x^3+mx^2+\left(2m-1\right)x-1\). mệnh đề nào sau đây sai
1.Làm tính nhân :
a) (-2x\(^3\)+\(\frac{3}{4}\)y\(^2\)-7xy) . 4xy\(^2\)
b) (-5x\(^{^{ }3}\)).(2x\(^2\)+3x-5)
c) (x\(^2\)-2x+3).(x-4)
d) (2x\(^3\)-3x-1).(5x+2)
2.Tính nhanh
a) 892\(^{^{ }2}\)+892 . 216+108\(^2\)
b) 36\(^2\)+26\(^2\)-52.36
Viết câu cùng nghĩa:
1. The science books are on the shelves on the right. They are very interesting.
=) The science books on the shelves ____________________
2. The girl is on the right corner of the room. She is Mai.
=) The girl on __________________________.
Dùng từ gợi ý, viết thành câu hoàn chỉnh:
1. Literature/ I/ read/ books/ write/ what/ I/ read
2. These racks/ left/ magazines/ and/ those racks/ right/ newspapers.
3. Where/ I/ find/ reference books/ readers?
Give a ...... before you turn left or right.
a. Signal
b. Turn
c. Sound
d. Sign
1.you must drive careully here | a. left luggage open 24 hours |
2. you can eat cheaply here | b. dangerlice on road |
3.you can stay here on holiday | c.camp- site open all year |
4.you can find work here | d.job agency we are got the right iob for you |
5. you can leave your luggage here | e.joe snack bar cheapest price in town |
Complete the blanks with the prepositions in,on or at
....... a farm
....... work
....... town
........ university
........ the country
........ the right/left
........ the north
........ 17 Walkley Road