A) (2X5−5X3+X2+3X−1)

Bài 3: Làm tính chia:

a)

(

2

x

5

−5

x

3

+x

2

+3

x−1

)

:

(

x

2

−1

)

b)

(

5

x

5

−2

x

4

−9

x

3

+7

x

2

−18

x−3

)

:

(

x

2

−3

)

c)

(

−3

x

3

+5

x

2

9

x

+15

)

:

(−3

x

+5)

d)

(

5

x

4

+

9

x

3

−2

x

2

4

x−8

)

:

(x−1)