下列去括号错误的是()A.a3-3(a+1)=a3-3a-1B.a3-2(a+b)=a3-2a-2bC.1-(x-y-z)=1+x+y+zD.1-(x-y+z)=1-x+y-z-数学

题目简介

下列去括号错误的是()A.a3-3(a+1)=a3-3a-1B.a3-2(a+b)=a3-2a-2bC.1-(x-y-z)=1+x+y+zD.1-(x-y+z)=1-x+y-z-数学

题目详情

下列去括号错误的是(   )
A.a3-3(a1)a33a3B.a32(ab)a32a2b
C.1(xyz)=1xyzD.1(xy+z)1xyz
题型:单选题难度:中档来源:不详

答案

C

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