计算:-x2-x3n-x=()A.x6nB.-x3n+2C.x3n+3D.-x3n+3-数学

题目简介

计算:-x2-x3n-x=()A.x6nB.-x3n+2C.x3n+3D.-x3n+3-数学

题目详情

计算:-x2-x3n-x=(  )
A.x6nB.-x3n+2C.x3n+3D.-x3n+3
题型:单选题难度:偏易来源:不详

答案

-x2•x3n•x=-x2+3n+1=-x3n+3.
故选D.

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