x/x-1 + 2/x²-x = 1x/2x-4 - 1/4-x² = 1/2
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 12:58:15
![x/x-1 + 2/x²-x = 1x/2x-4 - 1/4-x² = 1/2](/uploads/image/z/5451891-51-1.jpg?t=x%2Fx-1+%2B+2%2Fx%26%23178%3B-x+%3D+1x%2F2x-4+-+1%2F4-x%26%23178%3B+%3D+1%2F2)
x/x-1 + 2/x²-x = 1x/2x-4 - 1/4-x² = 1/2
x/x-1 + 2/x²-x = 1
x/2x-4 - 1/4-x² = 1/2
x/x-1 + 2/x²-x = 1x/2x-4 - 1/4-x² = 1/2
x/x-1+2/x(x+1)=1
x/x(x-1)(x+1)+2/(x-1)(x+1)=1
之后分子相加,在除1就行了