Question

求下列各式中的值:

                                              

 

                                            

 

Answer 1

【答案】

 

                                       

  解：           x =                     解：    x = 6 或 -4

 

 

                                          

 

解 ：    x = -1                          解：        x = 0

 

 

 

 【解析】略