3y |
-2x |
2x |
3y |
A.
| B.-
| C.
| D.-
|
9y2 |
4x2 |
8x3 |
273 |
2x |
3y |
x2 |
y |
y2 |
x |
1 |
x |
2x |
-y |
b2 |
ac |
x-y |
x+2y |
x2-y2 |
x2+4xy+4y2 |
x-y |
x+2y |
m2-n2 |
(m-n)2 |
(n-m)2 |
m2n2 |
m+n |
m |
ab3 |
x2 |
x2 |
-y |
y2 |
-x |
1 |
xy |
y2 |
x |
1 |
x |
A.m=6,n=1 | B.m=4,n=1 | C.m=2,n=1 | D.m=2,n=0 |
b2 |
2a |
b |
a2 |
1 |
ab |
a2-b2 |
b |
ab |
b-a |
a+2 |
a2-2a+1 |
a2-4a+4 |
a+1 |
a2-4 |
a2-1 |
x2-1 |
x2+2x+1 |
2x2-2 |
4x2+8x+4 |
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