Bài 1:Tính GT các biểu thức:
A= \(\left(\sqrt{5}+\sqrt{3}\right)^2\) - \(\left(\sqrt{5}-\sqrt{8}\right)^2\)
B= \(\sqrt{50}-3\sqrt{98}+2\sqrt{8}-3\sqrt{32}-5\sqrt{18}\)
C= \(\sqrt{13+30\sqrt{2+\sqrt{9+4\sqrt{2}}}}\)
(mink đag cần gấp)
1) Nam said to the tãi driver, ''Please, turt left at the first trafic light''
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2) She said to her son, ''Go straight up tairs and get to ed''
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3) The police said, ''Don't teach anything in the room''
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4) Listen to me and don't make noise in class'' , said the teacher
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5) The doctor said, ''You shouldn't drink alichol in smoke''
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(mink đag cần gấp)
I) câu bị động:
1) Somebody will clean the rôm later
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2) You mustn't often this parcel until Chrismas Day
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3) They can't make tea with cold water
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4) The students will hold a meeting before the teacher's Dair
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5) People can recycle ties to make pipers or flour coverings
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6) They should send applications before December
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(mink đag cần gấp)