1 |
x |
x2-1 |
x |
1 |
x |
x2-1 |
x |
x+1 |
x |
(x+1)(x-1) |
x |
x+1 |
x |
x |
(x-1)(x+1) |
1 |
x-1 |
1 |
2-1 |
2a-1 |
a |
1-a2 |
a2+a |
x2+1 |
x2-1 |
x-2 |
x-1 |
x-2 |
x |
5x+3 |
x-1 |
4x-2 |
x-1 |
a |
x |
x2-a2 |
x |
(a+1)(a-2) |
a2-4a+4 |
a |
a2-2a |
a+1 |
a-2 |
a3b+a2b2 |
a2+2ab+b2 |
a2-ab |
a2-b2 |
© 2017-2019 超级试练试题库,All Rights Reserved.