解方程:x-5=(x-5)² 谢谢!
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 19:43:17
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解方程:x-5=(x-5)² 谢谢!
解方程:x-5=(x-5)² 谢谢!
解方程:x-5=(x-5)² 谢谢!
x-5=(x-5)²
(x-5)²-(x-5)=0
(x-5)[(x-5)-1]=0
(x-5)(x-6)=0
∴x=5或x=6.
x-5=(x-5)²
(x-5)(x-5-1)=0
(x-5)(x-6)=0
∴x[1]=5,x[2]=6
x-5=1或x-5=-1得 x=-4 x=-6