A) ( X 1)( X 3) X X ( 2) 7 E) ( X 3)( X2 3 X 9) X (5 X2) 6 XB) 2 (3 X X 5) X X (6 1) 33 F) ( X 2)3 X X ( 1)( X 1) 6 X2 52 2 5(3 1)( 1) (4 3 )G) ( X 2)3 ( X 5)( X2 5 X 25) 6 X2 11X X X X X 2C...
Bài 3: Tìm x , biết:
a) ( x 1)( x 3) x x ( 2) 7 e) ( x 3)( x
2
3 x 9) x (5 x
2
) 6 x
b) 2 (3 x x 5) x x (6 1) 33 f) ( x 2)
3
x x ( 1)( x 1) 6 x
2
5
2
2
5
(3 1)( 1) (4 3 )
g) ( x 2)
3
( x 5)( x
2
5 x 25) 6 x
2
11
x x x x x 2
c)
h)
d) (12 x 5)(4 x 1) (3 x 7)(1 16 ) 81 x
3
2
2
2