( -2X3)(X2+ 3X –1) =A. -2X5 – 6X4 B.2X5 + 6X4 -2X3 C.-2X6 – 6X3 +2X3 D...

câu 6 : - KIEM TRA DAI CHUONG 1
KIEM TRA DAI CHUONG 1

Câu 6 : ( -2x

3

)(x

2

+ 3x –1) =

A. -2x

5

– 6x

4

B.2x

5

+ 6x

4

-2x

3

C.-2x

6

– 6x

3

+2x

3

D. -2x

5

–

6x

4

+2x

3

B. TƯ ÏLUẬN: ( 7 đ )