1 |
m |
1 |
n |
m2-2mn+n2 |
mn |
1 |
m |
1 |
n |
m2-2mn+n2 |
mn |
n-m |
mn |
(m-n)2 |
mn |
n-m |
mn |
mn |
(m-n)2 |
n-m |
mn |
mn |
(n-m)2 |
1 |
n-m |
1 |
n-m |
1 |
5-(-3) |
1 |
8 |
a+1 |
a2-2a+1 |
2 |
a-1 |
A.
| B.
| C.
| D.
|
x-1 |
x2-1 |
1 |
x+1 |
4 |
x2+x |
x |
x+1 |
x2-1 |
x2+2x+1 |
4(x2-x) |
x-1 |
7 |
4 |
a2-4 |
a |
a-2 |
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