a2-4 |
a2-4a+4 |
2-a |
a+2 |
a |
a-2 |
3 |
2x-2 |
1 |
1-x |
(a+2)(a-2) |
(a-2)2 |
2-a |
a+2 |
a |
a-2 |
a+2 |
a-2 |
2-a |
a+2 |
a |
a-2 |
(a+2)2-(a-2)2 |
(a+2)(a-2) |
a |
a-2 |
8a |
(a+2)(a-2) |
a-2 |
a |
8 |
a+2 |
7 |
6 |
7 |
6 |
x+2 |
x-1 |
m+1 |
x-1 |
A.m=-1 | B.m=1 | C.m=-2 | D.m=2 |
1 |
x-3 |
x |
3-x |
5x+2 |
x2+x |
3 |
x+1 |
2x |
2x-5 |
2 |
2x+5 |
4x+3 |
x-6 |
7 |
x-2 |
5 |
x |
1 |
x-3 |
x |
3-x |
© 2017-2019 超级试练试题库,All Rights Reserved.