\(\sqrt{4+2\sqrt[]{}3}\)

\(\left(\sqrt{ }7+\sqrt{ }3\right)^2\)

\(\left(\sqrt{ }5-\sqrt{ }3+1\right)\left(\sqrt{ }5-1\right)\)

\(\left(5\sqrt{ }3-2\sqrt{ }7\right)\left(5\sqrt{ }3+2\sqrt{ }7\right)\)

tính các biểu thức sau

nêu ví dụ về câu mở rộng thành phần,câu bị động nêu rõ veeftasc hại của việc hút thuốc la

Dạng 1: Rút gọn biểu thức

1:3x(x-2)-5x(1-x)-8(x^2-3)

2:(4x-5)(2x+3)-4(x+2)(2x-1)+10x+7

3:(6x+1)^2+(6x-1)^2-2(1+6x)(6x-1)

4: (x^2-2x+2)(x^2-2)(x^2+2x+2)(x^2+2)

5: (x+1)^3+(x-1)^3+x^3-3x(x+1)(x-1)

6:3(2^2+1)(2^4+1)........(2^64+1)+1

\(Change this direct speech into reported speech \)

1,"he work in a bank"

She said

2, "we went out lats night "

She told me

3, " im coming"

She said

\(Active-passive\)

1, They declared that she won the competitive

2,We have heard her crying alot

3,We have them paint the house

4, she let her children go out lats night

5, don't close that door,please

6, mr pike likes us cooking the meal

7,I remember them helping me alot

8, we want him to take our photos

9,I hope our teacher to give us less homework