x |
x-y |
y2 |
x+y |
x4y |
x4-y4 |
x2 |
x2+y2 |
x |
x+2 |
x+2 |
x-2 |
8 |
x2-4 |
x |
x-y |
y2 |
x+y |
x4y |
(x2+y2)•(x2-y2) |
x2+y2 |
x2 |
xy2 |
(x+y)(x-y) |
x2y |
(x+y)(x-y) |
xy2-x2y |
(x+y)(x-y) |
xy(y-x) |
(x+y)(x-y) |
xy |
x+y |
m |
x2-9 |
2 |
x+3 |
1 |
x-3 |
2-x |
x-3 |
1 |
3-x |
x2-1 |
x+1 |
1 |
x |
4 |
x2-4 |
x+3 |
x-2 |
x-1 |
x+2 |
2 |
x-3 |
m |
x-3 |
A.-3 | B.-2 | C.-1 | D.3 |
1-x |
x-2 |
1 |
2-x |
3 |
2x-2 |
1 |
1-x |
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