國文屋

位置:首頁 > 練習題 > 

x2﹣4x+1=0(*法)                                         ...

練習題1.16W

問題詳情:

x2﹣4x+1=0(*法)                                                                       

【回答】

x2﹣4x+4=4﹣1,                                                                                

∴(x﹣2)2=3,                                                                                

∴x=2±x2﹣4x+1=0(*法)                                         ...x2﹣4x+1=0(*法)                                         ... 第2張;                                                                                     

知識點:解一元二次方程

題型:計算題

標籤:4x10 x2