B1 : Tính

a, x².(x-2x³)

b, (x²+1).(5-x)

c, (x-2).(x²+3x-4)

d, (x-2).(x-x²+4)

e, (x²-1).(x²+2x)

f, (2x-1).(3x+2).(3-x)

g, (x+3).(x²+3x-5)

h, (xy-2).(x³-2x-6)

i, (5x³-x²+2x-3).(4x²-x+2)

B2 : Tính

a, (x-2y)²

b, (2x²+3)²

c, (x-2).(x²+2x+4)

d, (2x-1)³

Ai giúp e giải với ạ

Em cảm ơn nhiều ạ!!!

Read the following paragraph and complete it with one suitable word in each blank

Ewan McGregor was born in Scotland in 1971. He decided to be an actor when he was only nine and he starred his first film in 1992. So far in his career he has appeared (1) _________ a lot of different types of films, including comedies, musical, dramas and the Star Wars movies. In his career Ewan has worked with (2) _________ like Cameron Diaz and Nicole Kidman, and his films have won (3) _________ of awards. He loves acting and when he finished (4) _________ the musical, Moulin Rouge, he said, “I have never been happier to do anything in my life”.

Question 2:

A. engineers

B. farmers

C. actresses

D. teachers

Saint Giong was unable to talk, smile, or walk__________he was three years old.

A. if

B. because

C. while

D. even though

Biết x + 3 x 2 − 4 . 8 − 12 x + 6 x 2 − x 3 9 x + 27 = ... − 9 ( ... ) . Đa thức thích hợp điền vào chỗ trống ở tử và mẫu lần lượt là

A. x – 2; x + 2

B. ( x   –   2 ) 2 ; x+ 2

C. x +2; ( x   –   2 ) 2

D. – ( x   –   2 ) 2 ; x+ 2

Choose the best answer

I’d like to go on holiday but I haven’t __________________ yet.

A. got enough money

B. got money enough

C. to get enough money

D. to get enough money

Rewrite the following sentences without changing the meaning

Mai said to Susan “I’ll go on a business trip next month.”

Mai told Susan ______________

Thực hiện phép tính sau:  x 3 x 2 + 1 + x x 2 + 1

A. -x

B. 2x

C.  x 2

D. x

Để khử hoàn toàn 2,32 gam một oxit kim loại, cần dùng 0,896 lít khí  H 2 ở đktc. Kim loại đó là 

A. Mg. 

B. Cu. 

C. Fe. 

D. Cr.