\(x.(x^2-2x+1)=x(x-1)^2\)

what is her mother going to prepare for her bỉthdat party

there are three sticks of butter in the cupboard

i have enough food for the first three day of your stay

7.C

8.D

7B

8D

7. C

8.B

24 B

25 C

26 B

27 C

28 A

29 D

30 C

31 A

32 C

33 B

34 B

35 D

36 C

37 C

38 B

39 C

 1.A     2.B       3. D      4. C      5.B       6. A      7. D      8. C     9. D     10. B

11 B   12  D   13 C   14 A    15 C    16 A  17 D    18 B   19 B    20 C

21 A

22 A

1A 2B 3D 4D 5B 6A 7D 8C 9D 10B 11B 12C 13C 14A 15D 16A 17D 18B 19B 20C 21A 22A 

\(\dfrac{\dfrac{1}{15}}{2x}=\dfrac{75}{4.5}\)

\(\Leftrightarrow2x=\dfrac{1}{250}\)

hay \(x=\dfrac{1}{500}\)