5 |
3 |
5 |
3 |
5 |
3 |
5 |
3 |
A.61,63 | B.63,65 | C.65,67 | D.63,64 |
A.(2a+b)(2a-3b) | B.(x+1)(1+x) | C.(x-2y)(x+2y) | D.(-x-y)(x+y) |
A.(x+y)(x-y)=x2-y2 | B.(-x+2y)2=-x2-4xy+4y2 | ||||
C.(2x-
| D.(-3x-2y)2=9x2-12xy+4y2 |
A.(x-y)(-x+y) | B.(-x-y)(-x+y) | C.(x-y)(-x-y) | D.(x+y)(-x+y) |
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