2X4−5X3+6X2−5X+ =2 0 2) (X+ (4+ X+3)4 =2

1)

2

x

4

5

x

3

+

6

x

2

5

x

+ =

2 0

2)

(

x

+

1

) (

4

+

x

+

3

)

4

=

2