八年级分式通分,好难啊
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 12:09:45
![八年级分式通分,好难啊](/uploads/image/z/4010695-7-5.jpg?t=%E5%85%AB%E5%B9%B4%E7%BA%A7%E5%88%86%E5%BC%8F%E9%80%9A%E5%88%86%2C%E5%A5%BD%E9%9A%BE%E5%95%8A)
八年级分式通分,好难啊
八年级分式通分,好难啊
八年级分式通分,好难啊
(3a-6b)/(a+b)-(5a-6b)/(a-b)-(4a-5b)/(a+b)-(7a-8b)/(a-b)
=(3a-6b-4a+5b)/(a+b)-(5a-6b+7a-8b)/(a-b)
=(-a-b)/(a+b)-(12a-14b)/(a-b)
=-1-(12a-14b)/(a-b)
=(15b-13a)/(a-b)
你的字,比较赖
见下图