a3b+a2b2 |
a2+2ab+b2 |
a2-ab |
a2-b2 |
a2b(a+b) |
(a+b)2 |
(a+b)(a-b) |
a(a-b) |
b |
a+2b |
a2+2ab+b2 |
a2-4b2 |
A.
| B.(a-3)-2=a-5 | ||||||||
C.(
| D.
|
a-2 |
a2 |
a-1 |
a2-4a+4 |
a-1 |
a |
4xy |
x-y |
4xy |
x+y |
2-x |
x+2 |
2x |
x2-4 |
2 |
1 |
x |
x3+mx2+x |
x4+2mx2+1 |
1 |
3 |
A.-2 | B.-1 | C.1 | D.2 |
© 2017-2019 超级试练试题库,All Rights Reserved.