(x-3)/(x²-1)+3/(1-x)=(x-3)/(x+1)(x-1)-3(x+1)/(x+1)(x-1)=x-3-3(x+1)=-2x-6第一个等号上是A,第二个是B,第三个是C,第四个是D,问从哪一部开始错了,从B到C是否正确,如果错误,原因是:题目打错了请看图,看不清
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 12:34:52
![(x-3)/(x²-1)+3/(1-x)=(x-3)/(x+1)(x-1)-3(x+1)/(x+1)(x-1)=x-3-3(x+1)=-2x-6第一个等号上是A,第二个是B,第三个是C,第四个是D,问从哪一部开始错了,从B到C是否正确,如果错误,原因是:题目打错了请看图,看不清](/uploads/image/z/441035-35-5.jpg?t=%28x-3%29%2F%28x%26%23178%3B-1%29%2B3%2F%281-x%29%3D%28x-3%29%2F%28x%2B1%29%28x-1%29-3%28x%2B1%29%2F%28x%2B1%29%28x-1%29%3Dx-3-3%28x%2B1%29%3D-2x-6%E7%AC%AC%E4%B8%80%E4%B8%AA%E7%AD%89%E5%8F%B7%E4%B8%8A%E6%98%AFA%2C%E7%AC%AC%E4%BA%8C%E4%B8%AA%E6%98%AFB%2C%E7%AC%AC%E4%B8%89%E4%B8%AA%E6%98%AFC%2C%E7%AC%AC%E5%9B%9B%E4%B8%AA%E6%98%AFD%2C%E9%97%AE%E4%BB%8E%E5%93%AA%E4%B8%80%E9%83%A8%E5%BC%80%E5%A7%8B%E9%94%99%E4%BA%86%2C%E4%BB%8EB%E5%88%B0C%E6%98%AF%E5%90%A6%E6%AD%A3%E7%A1%AE%2C%E5%A6%82%E6%9E%9C%E9%94%99%E8%AF%AF%2C%E5%8E%9F%E5%9B%A0%E6%98%AF%EF%BC%9A%E9%A2%98%E7%9B%AE%E6%89%93%E9%94%99%E4%BA%86%E8%AF%B7%E7%9C%8B%E5%9B%BE%2C%E7%9C%8B%E4%B8%8D%E6%B8%85)
(x-3)/(x²-1)+3/(1-x)=(x-3)/(x+1)(x-1)-3(x+1)/(x+1)(x-1)=x-3-3(x+1)=-2x-6第一个等号上是A,第二个是B,第三个是C,第四个是D,问从哪一部开始错了,从B到C是否正确,如果错误,原因是:题目打错了请看图,看不清
(x-3)/(x²-1)+3/(1-x)=(x-3)/(x+1)(x-1)-3(x+1)/(x+1)(x-1)=x-3-3(x+1)=-2x-6
第一个等号上是A,第二个是B,第三个是C,第四个是D,问从哪一部开始错了,从B到C是否正确,如果错误,原因是:
题目打错了请看图,看不清的请点击图片.(手绘的,可能有点难看)
(x-3)/(x²-1)+3/(1-x)=(x-3)/(x+1)(x-1)-3(x+1)/(x+1)(x-1)=x-3-3(x+1)=-2x-6第一个等号上是A,第二个是B,第三个是C,第四个是D,问从哪一部开始错了,从B到C是否正确,如果错误,原因是:题目打错了请看图,看不清
你好第一处就错了,选A
错在-3(x+1)/(x+1)(x-1)
此处应该是-3(x+1)/(x+1)(1-x)