试题与答案

把(m+n)2-(m-n)2分解因式,其结果为( ) A.4n2 B.24 C.

题型:选择题

题目:

把(m+n)2-(m-n)2分解因式,其结果为(  )

A.4n2

B.24

C.4mn

D.-4mn

答案:

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