CHO ( 2 )3 2 1 6X − X+ DX=0A.( )1; 2 . B. (−; 0). C. ( )0; 4 . D. (−3...

Câu 11: Cho

(

2

)

3 2 1 6xx+ dx=

0

A.

( )

1; 2 . B.

(

−; 0

)

. C.

( )

0; 4 . D.

(

3;1

)

.