x |
x-1 |
3 |
(x-1)(x+2) |
2 |
3 |
x |
x-1 |
3 |
(x-1)(x+2) |
x(x+2)-3-(x-1)(x+2) |
(x-1)(x+2) |
x2+2x-3-x2-2x+x+2 |
(x-1)(x+2) |
x-1 |
(x-1)(x+2) |
1 |
x+2 |
2 |
3 |
1 | ||
-
|
3 |
4 |
2 |
| ||
4 |
(a+1)(a-2) |
a2-4a+4 |
a |
a2-2a |
a |
a-2 |
1 |
2x |
1 |
x2-x |
1-x |
2 |
a4+ma2+1 |
2a3+ma2+2a |
a2+2a |
a-1 |
1 |
a |
x-4 |
x2-1 |
x2-3x-4 |
x2+2x+1 |
1 |
x-1 |
3 |
© 2017-2019 超级试练试题库,All Rights Reserved.