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2 năm trước
A) (x-3)²-x(x-7)=12 (tìm x) B) 12x²y-18xy²-30y² (phân tích đa thức thành nhân tử) C) 2x²-2y²-6x-6y (phân tích đa thức thành nhân tử)
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V. Arrange the words into the sentences 1. want/ Tom/ Mary/ and/ glasses/ two/ of/ water. .................................................................... 2. sister/ my/ going/ is/ to/ live/ country/ the/ in. ................................................................. 3. going/ dinner/ tonight/ is/ have/ to/ where/ Lan? .................................................................... 4. the/ spring/ in/ what/ weather/ is/ like/ the? ......................................................................... 5. building/ tallest/ the/ is/ this/ city/ the/ in/ world. ........................................................................... 6. Lan's house/ smaller/ is/ house/ my/ than. .................................................................... 7. she/ never/ with/ camping/ goes/ her/ friends. ..................................................................... 8. often/ she/ go/ does/ how/ cinema/ to/ the? .................................................................... II. Reading : * Read the passage carefully My uncle is an engineer. His name is Hung. He is going on vacation this summer. First, he is going to visit Ha Long Bay. He is going to stay in a small hotel near the bay for two days. Then he is going to visit Da Lat for three days. Finally, he is going to visit some friends in Ho Chi Minh City. He is going to stay there for one day. He is going to walk along Saigon river. He is going to fly home A True (T) or False (F) 1. Mr. Hung is going to visit three cities this summer........... 2. He is going to visit Ha Long Bay first, then Ho Chi Minh City, and finally in Da Lat........ 3. He is going to stay in Da Lat for three days. 4. He is going to travel home by train.

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