化简:2x减1的绝对值减x减2的绝对值

2025-05-14 00:37:06
推荐回答(1个)
回答1:

|2x-1|-|x-2|
1.x<=1/2
1-2x+x-2
=-x-1
2. 1/22x-1+x-2
=3x-3
3. x>2
2x-1-(x-2)
=2x-1-x+2
=x+1