x |
x-y |
y2 |
x+y |
x4y |
x4-y4 |
x2 |
x2+y2 |
x+2 |
x2-2x |
x-1 |
x2-4x+4 |
x-4 |
x |
xy2 |
(x-y)(x+y) |
x2y |
(x-y)(x+y) |
xy2 |
(x-y)(x+y) |
x4y |
(x+y)(x-y)(x2+y2) |
x2+y2 |
x2 |
xy2 |
(x-y)(x+y) |
x2y |
(x-y)(x+y) |
xy(x-y) |
(x-y)(x+y) |
xy |
x-y |
x+2 |
x(x-2) |
x-1 |
(x-2)2 |
x |
x-4 |
x-4 |
x(x-2) 2 |
x |
x-4 |
1 |
x2-4x+4 |
科目:初中數(shù)學(xué) 來源: 題型:
x |
x-y |
2y |
x-y |
xy |
x-2y |
1 |
x |
1 |
y |
4 |
1 |
2 |
2 |
x+1 |
x-1 |
4 |
x2-1 |
x |
x-1 |
3 |
2x-2 |
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