RÚT GỌN .A) ( X – 1)2 – ( X + 2 2)(2 2-X) B, (2X – 3)(X2 + 2X –...
Bài 1. Rút gọn .a) ( x – 1)
2
– ( x +
2 2
)(
2 2
-x)
b, (2x – 3)(x
2
+ 2x – 4)
c)
(1
x x
)(
2
1
x
) 2017
x
3
2
2 2
2 2
2
(1
x x
)(
2
1
x
) 2017
x
3