tìm x
1)-8x^3-36x^2+54x-35=0
2)x^3/27-2/3x^2+4x-8=0
 

1.They repaired ... car , but ..... didn't
A.My-your  B.Hers-our  C.Hers - ours
2..... School is big but .....is small.
A.Her-ours  b.hers-our   c.Hers - ours
3. ..... room is nice and large.
a.My parents  B.my parents'  C.Mine parent's
4.There are .... motorbikes and these are .....
A.ours-yours  B.your-yours  C.our-yours

1) If she the doesn;t put out the coat , there will be a fire
=> Uncless
2)Uncless the teacher gives ú tasks , we will be free to night
=>If