Cho pt x² + 2(m+1)x - 2m⁴ + m² = 0 (m là tham số)
a) Giải pt khi m = 1 
b) Chứng minh rằng pt luôn có 2 nghiệm phân biệt với mọi m 

cho pt x² - 2mx - 2m - 6 =0
a) giải pt khi m=1
b) xác định m để pt có hai nghiệm sao cho x₁² + x₂² nhỏ nhất

cho pt bậc hai x² + (2m+1)x + m² = 0 (m là tham số )
a) giải pt khi m=1
b) tìm để pt có nghiệm kép. Tìm nghiệm kép đó

Cho pt x² + 2(m+1)x - m - 4 =0 (m là tham số). Chứng minh rằng pt trên có hai nghiệm phân biệt và biểu thức M = x₁(1-x₁) + x₂(1-x₂) không phụ thuộc vào m

Cho pt bậc x² - (3m-1)x + 2m² + m - 1=0 (m là tham số)
a) Giải pt khi m= -1
b) Giả sử x₁² , x₂² là hai nghiệm pb của chương trình. Tìm m để B= x₁² - x₂² - 3x₁x₂ đạt min

Fill in: although, even though, though, but, despite or in spite of.

0. A: I can’t believe you paid so much for that concert ticket!

B: Even though it was expensive, it was definitely worth it.

A: The film was really great.

B: It was a bit long, ........................

A: What a simple card trick!

B: ........................ it may seem easy, I’ve been practising it for months.

A: How did you and your brother do in the exams?

B: I did well ........................ Billy didn’t.

A: Did you finish your homework?

B: Yes, ........................ it took me more than two hours.

A: Did you get to the airport on time?

B: Yes. ........................ the heavy traffic, I was able to catch my flight.

A: I didn’t go out over the weekend ........................ the good weather. 

B: Why? Were you feeling sick?

A: I think we have the same camera.

B: Not really. Yours takes film ........................ mine is digital.

A: What do you think of extreme sports?

B: They are exciting    ........................ they can be very dangerous.

A: Did you like the house you saw yesterday?

B: To be honest, the house wasn’t very nice. I liked the garden, ........................

Viết đoạn văn có chứa 1 câu chủ động và 1 câu bị động
Chủ đề: GIÁ TRỊ CỦA TỤC NGỮ

Read this review of a theatre production, then complete it with these words. There are two words you don’t need.

Last Saturday night, local company Starlight gave a powerful (7) ……………………………. of the famous (8) ……………………………. Romeo and Juliet, by William Shakespeare. The actors and (9) ……………………………. all showed great talent and each (10) ……………………………. was directed brilliantly. The historical atmosphere was increased by superb (11) …………………………….and scenery. Overall it was a fantastic night out. I stood with the rest of the (12) ……………………………. and cheered at the end of the show and as I went towards the (13) ……………………………. to leave, I heard nothing but praise from the people around me. Well done Starlight!

Turn the questions from direct into reported speech.

0. ‘How old are you?’ he asked me.

He asked me how old I was.

‘When will you call me?’ she asked George.

…………………………………………………………………………………………………………………

She asked, ‘Can you play the piano?’

…………………………………………………………………………………………………………………

He asked, ‘Who’s there?’

…………………………………………………………………………………………………………………

‘Do you like fish?’ she asked Jonathan.

…………………………………………………………………………………………………………………

‘What have you done today?’ Mother asked.

…………………………………………………………………………………………………………………

Jim asked, ‘Did you go to work yesterday?’

…………………………………………………………………………………………………………………