Đáp án:
Giải thích các bước giải:
`√x +2 = -1`
`⇔√x=-1-2`
`⇔√x=-3`
`⇒`vô nghiệm
`√x+2=-1`
`√x +2=-2`
`⇔√x=-2-2`
`⇔√x=-4`
Trọng tình trọng nghĩa là gì ? Giải thích đầy đủ và rõ ràng, ngắn gọn (Câu này có mạng, copy thì ^ . ^) Dễ mà nhanh không hết slot
Why is Melanie always speaking____________for him? a. in b. to c. down d. up
II. Fill in each blank with one suitable word or give the correct form of the words below. 1. Can't we employ someone as a(n) ___________ to help with all this paper work? ASSIST 2. 99% of _____________ in American have at least one TV. HOUSE 3. Her hair is naturall curly but she always _________________ it. STRAIGHT 4. He got sunburn on his back because he fell _______________. SLEEP 5. ______________, there was a flash of lightning and then loud thunder. SUDDEN 6. It's very _____________ to swim there because the water is heavily polluted. SAFE 7. Underground cables carry ______________ to all parts of the city. ELECTRICAL 8. Taylor swift is my idol, she sings _________________. BEAUTY 9. It _____________ me how you can put up living in such a dirty house. AMAZEMENT 10. She's the most ______________ person in the organization. POWER III. Give the correct tense or form of the verbs in the bracket. 1. She (play)_______ tennis once or twice a week. 2. I'm afraid he isn't here. He (leave) ___________ an hour ago. 3. The moon (go) ___________ round the earth in about 27 days. 4. (Recycle) ___________ rubbish is one way to help protecting the environment. 5. My brother (tell) ____________________ jokes! They're usually rubbish, though. 6. I used (cycle) ___________ to school everyday. 7. Would you like (join) ____________ our manga club? 8. My car is very dirty. It needs (wash) _____________. 9. Each song only (cost) _____________ 50 cents at present because it is on special offer. 10. The concert (begin) ______________ at 7.30 tomorrow. EM cảm ơn ạ :333
Nhanh nhanh hộ mk nhá cần gấp ạ
I- Fill in each gap with the most suitable words: My uncle lives in a small house in Hanoi. He teaches English at a Secondary School there. He often (1)…… …………..breakfast at seven in the morning and he has (2)…….……..…….. at about twelve o’clock in the canteen of the school. He teaches students in the morning. He teaches them dialogues (3)…………… ………..Wednesdays and Fridays. On Monday he teaches them grammar. In the evening, he usually stays at home and (4)……… ….………to the radio or watches TV. He sometimes goes to the (5)…… ……….…...theater. He always goes to bed at half past ten.
Chú bé loắt choắt Cái xắc xinh xinh Cái chân thoăn thoắt Cái đầu nghênh nghênh Ca lô đội lệch Mồm huýt sáo vang Như con chim chích Nhảy trên đường vàng. Biện pháp tu từ nào được tác giả sử dụng trong khổ thơ thứ 2 em vừa chép. Chỉ rõ và nêu tác dụng của biện pháp tu từ đó. Trình bày bằng một đoạn văn (5-7 câu), trong đoạn văn có sử dụng một câu trần thuật đơn có từ là (gạch chân và chú thích rõ).
Huhu nhìu quá mọi ng hộ mk nhanh nha
when my father was young, he ... get up early to do the gardening a)used to b)use to c)was used to d)got used to
Đây là nhân đa thức nha . Tìm hộ mik với Tìm x biết: a) 3x(8x – 4) – 6x(4x – 3) = 30 b) (12x - 5)(4x - 1) + (3x – 7)(1 – 16x) = 18 c) (2x + 3)(x – 4) – 3x(x – 1) + (x – 5)(x – 2) + 5x = 2
Pàiii 3 giải sao m.n Giúp mik vss mai thii r
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