狭隘是什么意思啊:分解因式(x的平方减去5)的2次方-8(x的平方-5)+16
来源:百度文库 编辑:中科新闻网 时间:2024/05/02 16:53:44
(x2-5)2-8*(x2-5)+16
=(x2-5-4)2
=(x2-9)2
=(x+9)2*(x-9)2
(x2-5)2-8*(x2-5)+16
=(x2-5-4)2
=(x2-9)2
=(x+9)2*(x-9)2
(x2-5)2-8*(x2-5)+16
=(x2-5-4)2
=(x2-9)2
=(x+9)2*(x-9)2