Tìm x

\(\left(x^2-4\right)\sqrt{x}=0\)

Tính hợp lí nếu có thể

b) \(\dfrac{6^3+3.6^2+3^3}{-13}\)

a)  \(\dfrac{20^5.5^{10}}{100^5}\)

(1.25-4/5x)^3=-125

47. You have never been to Paris, _________?
48. Something is wrong with Jane today, _________?
49. There aren’t many people here yet, __________?
50. He has a bicycle, __________?
 

42. She is an excellent dentist, __________?
43. They won’t be here, _________?
44. They must have arrived this place before, ___________?
45. He must arrive on time, ___________?
46. Peter would like to come with us to the party, _________?