作业帮ab-b²分之a+b÷[-(a-b)²分之ab+b²]
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/15 19:30:03
![ab-b²分之a+b÷[-(a-b)²分之ab+b²]](/uploads/image/z/2451655-55-5.jpg?t=ab-b%26%23178%3B%E5%88%86%E4%B9%8Ba%2Bb%C3%B7%5B-%28a-b%29%26%23178%3B%E5%88%86%E4%B9%8Bab%2Bb%26%23178%3B%5D)
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ab-b²分之a+b÷[-(a-b)²分之ab+b²]
ab-b²分之a+b÷[-(a-b)²分之ab+b²]
ab-b²分之a+b÷[-(a-b)²分之ab+b²]
解ab-b²分之a+b÷[-(a-b)²分之ab+b²]
=a+b/ab-b²÷[ab+b²/-(a-b)²]
=-（a+b）/b（a-b）÷[b（a+b）/(a-b)²]
=-（a+b）/b（a-b）×[(a-b)²/b（a+b）]
=-（a-b）/b²