x2-1 |
x+1 |
x3-1 |
x2+x+1 |
x4-1 |
x3+x2+x+1 |
xn-1 |
( ) |
x2-1 |
x+1 |
x3-1 |
x2+x+1 |
x4-1 |
x3+x2+x+1 |
xn-1 |
xn-1+xn-2+…+x+1 |
(-2)11-1 |
-3 |
1 |
3 |
c |
ab |
b |
ac |
b |
a |
a |
a+2 |
2 |
a-2 |
1 |
a2-4 |
2m |
3n |
3n |
p |
mn |
p2 |
a-b |
a |
2ab-b2 |
a |
1 |
3 |
3 |
(x-1)2 |
3x |
(x-1)2 |
4 |
a2-4 |
2 |
a+2 |
1 |
a-2 |
a2-1 |
a2+2a+1 |
a2-a |
a+1 |
4 |
3 |
2 |
3 |
4 |
3 |
2 |
3 |
a |
b |
4 |
x2-4x+4 |
x |
x-2 |
x-4 |
x-2 |
© 2017-2019 超级试练试题库,All Rights Reserved.