( 0,5Đ) ( X – 3 )2 – ( 2 – 3X )2 =
Câu 4 : ( 0,5đ) ( x – 3 )
2
– ( 2 – 3x )2
= ?A. (2x + 1) (5 – 4x) B. (x + 1) (5 +4x) C. (x -1) (5 – 4x) D. (x -1) (5 + 4x)2
– ( 2 – 3x )2
= ?A. (2x + 1) (5 – 4x) B. (x + 1) (5 +4x) C. (x -1) (5 – 4x) D. (x -1) (5 + 4x)