2\(\sqrt{x}\) \(=\) 14

\(\Leftrightarrow\sqrt{x}\) \(=7\)

\(\Leftrightarrow x=49\)

Rewrite each of the following sentences in a such way that it is as similar as possible in meaning
1. It was such a hard cake that I couldn’t eat it .
--->The cake was so hard that I couldn't eat it .

2. When she is asked about her exam result, she hate it .
--->She hates asking about her exam result .

3.He said: “ Do you know the name of the person who invented radio .
--->He asked if I knew the name of the person who invented radio .

4.It was a four-hour flight from Ho Chi Minh to Bangkok .
--->It took me four hour to flight from Ho Chi Minh to Bangkok .

5.Practice speaking English everyday, or you can’t improve your English .
--->If you practise speaking English everyday , you can improve your English .

7.My mother doesn’t usually go to work without having breakfast .

--->My mother isn’t used to going to work without having breakfast .

4 cách nha tích ủng hộ mình đi

1. My friend, Janet was told not to come here again.

2. I was given 2 sillings change at the shop.

3. He was promised a book by her.

4. It is time the cows were bought in.

5. I was told to go away.

I won’t do the homework for you. You should do it __yourself______.

1. Her sister is old. She can drive a car .

=> Her sister is old enough to drive a car .

2. The house is very dirty .

=> What a dirty house !

3. I intend to study abroad .

=> I am going to study abroad .

4. Peter is too short to reach the shelf .

=> Peter is not tall enough to reach the shelf .

5. Tam is taller than Long .

=> Long is shorter than Tam .

6. I love listening to music .

=> I like listening to music .

1. Language learners should(A) trying(B) different(C) ways of learning(D) words.

\(\rightarrow\) Lỗi sai : B . trying - Sửa lại : try

2. Patrick doesn't(A) run quickly as(B) Lee, but(C) he can(D) run father.

\(\rightarrow\) Lỗi sai : B . quickly as - Sửa lại : as quick as

3.My father has worked(A) in that(B) company since(C) more than(D) twenty years.

\(\rightarrow\) Lỗi sai : C . since - Sửa lại : for

4. How long(A) have(B) you(C) be(D) here? - For two weeks.

\(\rightarrow\) Lỗi sai : D . be - Sửa lại : been

5. I'm going to planting (A) trees and flowers(B) in(C) the school garden(D).

\(\rightarrow\) Lỗi sai : A . to planting - Sửa lại : to plant

1. We ( tidy )...will tidy..... our house next Sunday.

2. What ..will...... you .( do) ..do......tomorrow evening ? - Nothing. I'm free.

3. There's a good film on TV tonight. I.(wach) will watch....... it.

4. We (fly)...will fly..... to New York at the beginning of September.

a) 5 - 7x \(\ge\) 2x + 14

\(\Leftrightarrow\) -7x -2x \(\ge\) -5 + 14

\(\Leftrightarrow\) -9x \(\ge\) 9

\(\Leftrightarrow\) x \(\le\) -1

b) \(\dfrac{1,5-x}{5}< \dfrac{4x+5}{2}\)

\(\Leftrightarrow\) \(2\left(1,5-x\right)\) \(< 5\left(4x+5\right)\)

\(\Leftrightarrow\) \(3-2x\)\(< 20x+25\)

\(\Leftrightarrow\) \(-2x-20x< -3+25\)

\(\Leftrightarrow\) \(-22x< 22\)

\(\Leftrightarrow\) \(x>-1\)