Giải giúp em với ạ, em cảm ơn nhiều

3x^2-3x(-2+x) làm xong mình cho 5sao

Ex V. Fill in the gaps with the correct form of the word in brackets 1. Children are recommended to eat more seafood as it helps them build ……………. bones. (HEALTH) 2. The boy shouldn’t watch horror films or …………… TV programs as he often has nightmares. (FRIGHTEN) 3. The press came to the presentation with a view to collecting ………………….. (INFROM) 4. ……………….., over ninety percent of the damage caused by fire rather than by the collapse of the buildings. (CONSEQUENT) 5. The increasing number of the ……………… of the city has pose some serious problems. (INHABIT) 6. Our training group ……………… increased as more people joined in yesterday morning. (GRADUAL) 7. It is not difficult to make some …………….. about the future development of the economy. (PREDICT) 8. The concert ………………. takes place in the city hall where many local citizens come to see this time of the year. (NORMAL) 9. The Internet is one of many ……………. in our modern life and it brings us enormous benefits. (INVENT) 10. With all forms of exercise, it is important to start slowly and build up …………….. (GENTLE)

Ex IV. Match the words in column A with those in column B A B 1.gain a. bad habits 2.prevent b. the destination 3.boost c. some medicine 4. get rid of d. weight 5.do e.an important decision 6.stay f. enough money 7.take g. a lot of exercise 8.make i. the problems 9.reach i. some serious diseases 10.solve j. daily routine 11.keep k. the memory function 12.save l. healthy

em cần cấp ạ, nhờ anh chị giúp em.

rút gọn đa thức (9x-1)^2(1-5x)^2+12(5x-1)(9x-1)

1 câu thôi anh chị giải thích giúp em

nêu những lợi thế về nông nghiệp của nước ta?

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Vẽ chibi tương tư NL:Chán quá ko ai hợp gu để tương tư=))