作业帮“bˆ4/(a-b)²×(aˆ4+a²b²-2a³b)/ab³÷(b²-a²)/ab+b²化简（xˆ4-yˆ4）/（2x²+xy-y²）×（2x-y）/（xy-y²）÷[（x²+y²）/y]²化简
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/20 21:13:56
![“bˆ4/(a-b)²×(aˆ4+a²b²-2a³b)/ab³÷(b²-a²)/ab+b²化简（xˆ4-yˆ4）/（2x²+xy-y²）×（2x-y）/（xy-y²）÷[（x²+y²）/y]²化简](/uploads/image/z/7258364-44-4.jpg?t=%E2%80%9Cb%26%23710%3B4%2F%28a-b%29%26%23178%3B%C3%97%28a%26%23710%3B4%2Ba%26%23178%3Bb%26%23178%3B-2a%26%23179%3Bb%29%2Fab%26%23179%3B%C3%B7%28b%26%23178%3B-a%26%23178%3B%29%2Fab%2Bb%26%23178%3B%E5%8C%96%E7%AE%80%EF%BC%88x%26%23710%3B4-y%26%23710%3B4%EF%BC%89%2F%EF%BC%882x%26%23178%3B%2Bxy-y%26%23178%3B%EF%BC%89%C3%97%EF%BC%882x-y%EF%BC%89%2F%EF%BC%88xy-y%26%23178%3B%EF%BC%89%C3%B7%5B%EF%BC%88x%26%23178%3B%2By%26%23178%3B%EF%BC%89%2Fy%5D%26%23178%3B%E5%8C%96%E7%AE%80)
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“bˆ4/(a-b)²×(aˆ4+a²b²-2a³b)/ab³÷(b²-a²)/ab+b²化简（xˆ4-yˆ4）/（2x²+xy-y²）×（2x-y）/（xy-y²）÷[（x²+y²）/y]²化简
“bˆ4/(a-b)²×(aˆ4+a²b²-2a³b)/ab³÷(b²-a²)/ab+b²
化简
（xˆ4-yˆ4）/（2x²+xy-y²）×（2x-y）/（xy-y²）÷[（x²+y²）/y]²
化简
“bˆ4/(a-b)²×(aˆ4+a²b²-2a³b)/ab³÷(b²-a²)/ab+b²化简（xˆ4-yˆ4）/（2x²+xy-y²）×（2x-y）/（xy-y²）÷[（x²+y²）/y]²化简
bˆ4/(a-b)²×(aˆ4+a²b²-2a³b)/ab³÷(b²-a²)/(ab+b²)
=[bˆ4(aˆ4+a²b²-2a³b)(ab+b²)]/[(a-b)²ab³(b²-a²)]
=-[bˆ5a²(a²+b²-2ab)(a+b)]/[(a-b)²ab³(a²-b²)]
=-[bˆ5a²(a-b)²(a+b)]/[(a-b)²ab³(a-b)(a+b)]
=-[bˆ5a²]/[ab³(a-b)]
=-[b²a]/[(a-b)]
=ab²/(b-a)