A.4(x+
| B.4(x-
| ||||||||||||||||
C.(x-3y-
| D.(2x-
|
3 |
2 |
3 |
4 |
9 |
4 |
3 |
4 |
21 |
4 |
3 |
2 |
| ||
2 |
3 |
2 |
| ||
2 |
3+
| ||
2 |
3-
| ||
2 |
A.
| B.4-0.25m2 | C.1+a2 | D.-a4+1 |
A.x2-y2=(x-y)(x+y) | B.x2-2xy+y2=(x-y)2 |
C.x2y-xy2=xy(x-y) | D.x3-x=x(x2-1) |
A.①和② | B.③和④ | C.①和④ | D.②和③ |
A.x(x4-64) | B.x(x2+8)(x2-8) | ||||||||
C.x(x2+8)(x+2
| D.x(x+2
|
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