5. 6.(x n+1+2)(x n+x 2) 查看更多

 

题目列表(包括答案和解析)

(-3x+1)(-2x)等于                                                       (    )

A.-6x-2x       B.6x-2x             C.6x+2x                 D.-12x+4x

 

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2x-x等于(    )
A. xB.-xC. 3xD.-3x

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(-3x+1)(-2x)等于                                                      (   )
A.-6x-2xB.6x-2xC.6x+2xD.-12x+4x

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2x-x等于(    )

A. xB.-xC. 3xD.-3x

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(-3x+1)(-2x)等于                                                      (   )

A.-6x-2xB.6x-2xC.6x+2xD.-12x+4x

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