(2x²-3x-2):(x-2)
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Khách
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13 giờ trước (22:50)
1. What is the title of the film?
→ The title of the film is Kungfu Boy.
2. What kind of film is it?
→ It is a comedy.
3. Who are the main characters? / Who does it star?
→ The main actor is Bruce Wane.
4. What is the film about?
→ It is about a very big boy who saves his town and becomes a hero.
5. What do people say about the film?
→ People say it is funny and interesting.
13 giờ trước (22:28)
2. When do the traffic jams happen?
→ Traffic jams usually happen during rush hours, like in the morning when people go to work or school, and in the afternoon or evening when they go home.
3. What should you do before you turn while riding a bike?
→ Before you turn, you should look behind you to check for traffic and then signal with your hand to show where you're going.
4. What should cyclists wear?
→ Cyclists should wear a helmet for safety. They can also wear bright or reflective clothes so other drivers can see them easily.
5. What must you do when you get on or off a bus?
→ You must wait until the bus stops completely, and be careful of other vehicles when you get on or off. Always use the sidewalk if there is one.
(2x² - 3x - 2) : (x - 2)
= (2x² - 4x + x - 2) : (x - 2)
= [(2x² - 4x) + (x - 2)] : (x - 2)
= [2x(x - 2) + (x - 2)] : (x - 2)
= (x - 2)(2x + 1) : (x - 2)
= 2x + 1
Ta có: