(3-2根号2)x²+2(根号2-1)x+1=0求解
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/07 05:57:17
(3-2根号2)x²+2(根号2-1)x+1=0求解
(3-2根号2)x²+2(根号2-1)x+1=0求解
(3-2根号2)x²+2(根号2-1)x+1=0求解
(3-2根号2)x²+2(根号2-1)x+1=0
[(根号2-1)x]²+2(根号2-1)x+1=0
[(根号2-1)x+1]²=0
(根号2-1)x=-1
x=-1/(根号2-1)
即
x=-(根号2 +1)