x |
x-y |
y2 |
x(x-y) |
A.x2-y2 | B.
| C.
| D.
|
x |
x-y |
y2 |
x(x-y) |
x2-y2 |
x(x-y) |
(x+y)(x-y) |
x(x-y) |
x+y |
x |
2a |
a2-9 |
1 |
a-3 |
2x+1 |
(x-3)(x+4) |
A |
x-3 |
1 |
x+4 |
A.2 | B.1 | C.-2 | D.-1 |
x2 |
y-x |
y2 |
y-x |
1 |
x-3 |
x |
3-x |
2a2 |
a-2 |
8 |
2-a |
1 |
a-b |
1 |
a+b |
A.
| B.
| C.-
| D.-
|
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