|2-x|-|x+5|化简
网友回答
当X<-5时
|2-x|-|x+5|
=|x-2|-|x+5|
=-(x-2)-[-(x+5)}
=7当-5≤X<2时
|2-x|-|x+5|
=|x-2|-|x+5|
=-(x-2)-(x+5)
=-2x-3
当X≥2时|2-x|-|x+5|
=|x-2|-|x+5|
=(x-2)-(x+5)
=-7供参考!JSWYC
======以下答案可供参考======
供参考答案1:
当-5≤X<2时
|2-x|-|x+5|
=|x-2|-|x+5|
=-(x-2)-(x+5)
=-2x-3