b |
a |
ab |
a() |
| ||
a+b |
() |
2a+2b |
3a+3b |
9c |
a+b |
() |
b |
a |
ab |
a(a) |
| ||
a+b |
a2+2b2 |
2a+2b |
3a+3b |
9c |
a+b |
(3c) |
36ab3c |
6abc2 |
ma+mb-mc |
a+b-c |
| ||||
|
A.10 | B.9 | C.45 | D.90 |
1 |
a |
1 |
b |
2a+3ab-2b |
a-ab-b |
-3y |
2x |
-2a |
3b |
x |
-2y |
-a+b |
-a-b |
1 |
-x+y |
1 |
a |
1 |
b |
a-2ab-b |
2a-2b+7ab |
A.6 | B.-6 | C.
| D.-
|
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