计算2x（3x2+1），正确的结果是（　　）                                 ...

问题详情：

计算2x（3x2+1），正确的结果是（　　）                                              

A．5x3+2x                    B．6x3+1                      C．6x3+2x                    D．6x2+2x

【回答】

C【考点】单项式乘多项式．                                                                   

【专题】计算题．                                                                              

【分析】原式利用单项式乘以多项式法则计算即可得到结果．                        

【解答】解：原式=6x3+2x，                                                                   

故选：C．                                                                                         

【点评】此题考查了单项式乘多项式，熟练掌握运算法则是解本题的关键．                 

知识点：整式的乘法

题型：选择题