已知-2小于X小于3,化简|X+2|-|X-3|

2025-03-03 17:15:58
推荐回答(2个)
回答1:

-2则x+2>0
x-3<0
所以原式=(x+2)-(3-x)
=x+2-3+x
=2x-1

回答2:

|X+2|-|X-3|
=X+2+(X-3)
=X+2+X-3
=2X-1