(x的2次方-1)分之3x÷(1-(x+1)分之1)

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/27 20:15:33
(x的2次方-1)分之3x÷(1-(x+1)分之1)

(x的2次方-1)分之3x÷(1-(x+1)分之1)
(x的2次方-1)分之3x÷(1-(x+1)分之1)

(x的2次方-1)分之3x÷(1-(x+1)分之1)
=3x/(x+1)(x-1)÷(x+1-1)/(x+1)
=3x/(x+1)(x-1)×(x+1)/x
=3/(x-1)