化简(x-1)分之(x²-2x)÷【(x+1)分之(2x-1)-x+1】
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 14:05:38
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化简(x-1)分之(x²-2x)÷【(x+1)分之(2x-1)-x+1】
化简(x-1)分之(x²-2x)÷【(x+1)分之(2x-1)-x+1】
化简(x-1)分之(x²-2x)÷【(x+1)分之(2x-1)-x+1】
原式=x(x-2)/(x-1)÷[(2x-1+1-x^)/(x+1)]
=x(x-2)/(x-1)×(x+1)/[-x(x-2)]
=-(x+1)/(x-1).
X-1分之x2-x-2