X X( +1)(X+2)(X+ = 24 4) (X+2)(X−(X+4)(X− +6 6) X2 =0LỜI...

3)

x x

(

+

1

)(

x

+

2

)(

x

+ =

3

)

24

4)

(

x

+

2

)(

x

3

)(

x

+

4

)(

x

− +

6 6

)

x

2

=

0

Lời giải: