x2 |
y |
y2 |
x |
y |
x |
A.x5 | B.x5y | C.y5 | D.xy5 |
x4 |
y2 |
y6 |
x3 |
y4 |
x4 |
x4 |
y2 |
y6 |
x3 |
x4 |
y4 |
3a |
2b3 |
a2b |
2 |
A.-9a | B.9a | C.-36a | D.36a |
3x2y2 |
2a2b2 |
b |
x |
3y2x |
4ab |
x+2 |
x2-6x+9 |
1 |
3-x |
x-3 |
x+2 |
6y2 |
x |
12y |
x |
8x2 |
9y2 |
3y |
-4x |
a2+5a+6 |
2a+6 |
a2+2a-8 |
a2-4 |
© 2017-2019 超级试练试题库,All Rights Reserved.