2 |
3x |
2 |
x+y |
x+y |
3x |
x-y |
x |
2 |
3x |
2 |
x+y |
x+y |
3x |
x-y |
x |
2 |
3x |
2 |
3x |
(x-y)2 |
x2 |
2x2-4xy+2y2 |
x2 |
2x2-4xy+2y2 |
x2 |
a |
a+b |
b |
a-b |
a2 |
a2-b2 |
1 |
x |
8 |
x |
a2-b2 |
a-b |
a2+b2 |
ab |
n |
m |
n |
m |
1 |
a+1 |
a+3 |
a2-1 |
a2-2a+1 |
(a+1)(a-3) |
x2+y2 |
x-y |
2xy |
x-y |
1 |
x |
1 |
y |
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