THỰC HIỆN PHÉP TÍNH

Bài 1: Thực hiện phép tính:

(

2

)

) 3x 5 7a xx+ b) -2xy 2

(

x

3

+5x1

)

c)

(

x+4

) (

− +x

2

6x+5

)

(

2

)(

2

)

) 1 2 3 4d xxx+ e)

(

x+2y

)(

x2y

)

( )

2

(

2

)

) 3 1 7 2h x− − x +

(

2

5

3

3

2

)

) 6 4 : 2g x yxy + x y xy f)

(

12x y

3

4

+6xy

2

18xy

)

: 6xy

(

3

2

) ( )

) 3 5 6 : 2i xx + xx− j)

(

6x

3

2x

2

9x+3 : 3

) (

x1

)

k)

(

6x

3

+3x

2

+4x+2 : 3

) (

x

2

+2

)

l)

(

x

5

+4x

3

+3x

2

5x+15 :

) (

x

3

− +x 3

)