x mũ 2 trừ x mũ 2 bằng bao nhiêu ?

Câu 3: Bậc của đa thức  là :

  A. 3                 B. 1                            C. 2                              D. Đáp án khác.

Give the correct form of the word given to complete the sentence.

1. Young children are expected to show _____________ to their parents. (obey)

2. When cycling on the roads, remember: _____________ first. (safe)

3. Children should avoid _____________ foods such as hamburger and chips. (health)

4. Most road accidents happen because the motorists drive _____________. (care)

5. It is unsafe and _____________ to pass another vehicle on the left. (legal)

6. My _____________ was delayed for over twohours due to bad weather. (fly)

7. Everyone should _____________ obey traffic rules for their own safety. (strict)

8. The policeman _____________ the car to stop with a flashlight. (sign)

9. Signs with red circles are mostly _____________ -that means youcan’t do something. (prohibit)

10. This _____________ sign indicates that traffic lights are ahead. (warn)
11. It’s _____________to drive in the rush hours on the roads. (danger)

12. I’m not used to _______________ on the left. (drive)

13. He was fined for his missing _______________. (park)

14. We had a very _______________ evening in Lon don last month. (enjoy)

15. I believe you because I know you are always _______________. (truth)

16. Nam is very _______________in driving. (interest)

17. He drives so_______________ that he is sure to have an accident. (care)

18. John has a large _______________ of cars. (collect)

19. That car company has 2000 _______________. (employ)

20. Every week, there are two _______________ from Noi Bai to Cam Ranh airport. (fly)

ABC AC AB  A BC D AC
E AE AB = ABD ADE =  =  ABD ADE AD BE  =  ABD DAE

ABC AB AC = M BC  =  ABM ACM MAB MAC = AM AMC AM BC ⊥

Câu 44: _TH_Cho góc xOy , vẽ tia phân giác Ot của góc xOy . Trên tia Ot lấy điểm M bất kỳ,
từ điểm M vẽ các đường thẳng vuông góc với tia Ox tại A và tia Oy tại B .
 =  OMA OMB