展开全部
4x-x^2+2=0
-(x^2-4x-2)=0
x^2-4x-2=0
(x^2-4x+4)-6=0
(x-2)^2=6
x-2=±根号6
x=2±根号6
-(x^2-4x-2)=0
x^2-4x-2=0
(x^2-4x+4)-6=0
(x-2)^2=6
x-2=±根号6
x=2±根号6
展开全部
4x-x^2+2=0
-(x^2-4x-2)=0
x^2-4x-2=0
(x^2-4x+4)-6=0
(x-2)^2=6
x-2=±根号6
x=2±根号6
-(x^2-4x-2)=0
x^2-4x-2=0
(x^2-4x+4)-6=0
(x-2)^2=6
x-2=±根号6
x=2±根号6
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询