| ||||
|
0.2a-0.03b |
0.5a+0.06b |
(
| ||||
(
|
8x-4y |
6x+3y |
(0.2a-0.03b)×100 |
(0.5a+0.06b)×100 |
20a-3b |
50a+6b |
-35a4b3c |
21a2b4d |
x2-(y-z)2 |
(x+y)2-z2 |
xy-2y |
x2-4x+4 |
a2-b2 |
a2+ab |
A.
| B.
| C.
| D.
|
A.
| ||||
B.
| ||||
C.
| ||||
D.1-
|
1 |
6ab2 |
1 |
9a2bc |
a-1 |
a2+2a+1 |
6 |
a2-1 |
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