A) 4X2 −24X+36=(X−3)2 +  − +  + =   B) 1 2 1 ( 6) 0X X X   2 2C) (X2 +2X)2 −2X2 −4X=3

Bài 3: Tìm x , biết: a) 4x

2

24x+36=

(

x3

)

2

 +  − +  + =   b) 1

2

1

(

6

)

0x x x   2 2c)

(

x

2

+2x

)

2

2x

2

4x=3