Đáp án:
Giải thích các bước giải:
(a+b)²=a²+2ab+b²
(a-b)²=a²-2ab+b²
a²-b²=(a-b)(a+b)
(a+b)³=a³+3a²b+3ab²+b³
(a-b)³=a³-3a²b+3ab²-b³
a³+b³=(a+b)(a²-ab+b²)
a³-b³=(a-b)(a²+ab+b²)
Giúp mk lm hết đi Mk vote 5 sao
giúp em với nhanh cho 5 sao ạ !!!!!!!!!!!!!!!!!
nêu ý kiến của em về việc học sinh sử dụng xe máy, xe đạp điện mà ko đội mũ bảo hiểm cảm ơn
Activity 5. Read about the surprising facts about your body and complete the following sentences using passive voice. 1. The brain consumes the same amount of power as a 10-watt light bulb. ->The same amount of power as a 10-watt light bulb.......... 2. A simple, moderately severe sunburn damages the blood vessels extensively. ->The blood vessels........………………………… 3. About 7 octillion atoms make up your body. ->Your body………………………… 4. A heart pumps about 2000 gallons of blood through our bodies every day. ->About 2000 gallons of blood……………………… 5. We use 17 muscles to smile and 43 to frown. ->17 muscles……………and 43………………… 6. Scientists estimate about 32 million bacteria live on one square inch (2,5cm2) of our skin. ->About 32 million Cterid……………………………… 7. Only humans produces emotional tears. ->Emotional tears…………………………… Mình cần gấp. Điền vào dấu chấm nhé, ai trả lời đc mình đánh giá 5★
Calli: Bất lực Tone: Tùy nhưng ưu tiên xanh dương Nl: Trong acc chính của mình (hay acc phụ này cũng vậy), mình có ghi đầy đủ nội dung lẫn ý nghĩa tranh (nếu có) và họa cụ nữa. Vậy mà có một số bạn dĩa huông zô hỏi "My xài màu với giấy gì thế?" Tôi kiểu:
IV- Fill in each blank with an appropriate preposition. 1. I got …..…. a panic when I found the door was locked. 2. Is Sue contented …..…. her present job? 3. “How do you go to school?” – “………bicycle”. 4. The thief ran away when the burglar alarm went ……….. 5. What lesson do you have at 8.40 am …..…. Monday?2 6. She is never satisfied……. what she has. 7. He usually gets …... at 6:30 8. The flight will take ….…. at 8:45. 9. Mary used to be very interested ……. reading comic books. 10. His parents are very disappointed …….…. his study result. V.Fill in each blank with an appropriate preposition. 1. Is Phong’s house far …….….his school? – Very far. 2. Don’t worry ……………this problem. We promise to help you to solve it. 3. I am ……….…class 10A1 with fifty-five other students. 4. Would you like to go somewhere …………a drink? – That’s great. 5. Phong usually goes to school …….…bike. 6. Is Mary talking ………Daisy at present? 7. Ho Chi Minh city is usually crowded …………people and motorbikes in rush hours . 8. Can you help me? I’m looking ……...……my English book. 9. She is always worried …….…what people think about her. 10. My grandfather often goes ……….…a walk in the evening. 11. Fill ………….the blanks to complete the flowing sentences 12. Peter and Tom are talking ……..…their school. VI.Put the verbs in brackets in the present simple or the past simple tense. 1. I often …………………… (leave) the city at weekends. 2. He …………………… (travel) to Mexico by air last summer. 3. We …………………… (go) to school every day. 4. It …………………… (be) very cold now. 5. Bad students …………………… (never / work) hard. 6. Where …………………… (be) you last night ? 7. …………… she …………………… (like)ice-cream? 8. Mary …………………… (love) ice-cream. 9. They …………………… (begin) to study at this school 7 years ago. 10. I …………………… (have) coffee for breakfast every day
Chỉ cho mình với ạ 😢 cảm ơn mn nhiều
Khảo sát: y= x+1/x-2 Giúp mình với mn
5782,5827,5278,5287 sắp xếp từ bé đén lớn
bằng các phản ứng hóa học hãy chứng minh axit HCl và axit H2SO4 mang đầy đủ tính chất hóa học của một axit
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