1 |
1+a |
1 |
1+b |
1+b+1+a |
(1+a)(1+b) |
2+(a+b) |
1+(a+b)+ab |
2+(a+b) |
2+(a+b) |
x2 |
x2-y2 |
y2 |
x-y |
2x2y-2xy2 |
x2-2xy+y2 |
A.x+y | B.x-y | C.y-x | D.
|
3 |
a+b |
a2+2ab+b2 |
b2-ab |
a2-b2 |
x+1 |
x-2 |
x-2 |
x-1 |
4x2-5x |
x2-4 |
1 |
x-1 |
x |
x-2 |
x |
x+2 |
4x |
x-2 |
1 |
a |
1 |
b |
2 |
a+b |
ab |
a2-b2 |
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