化简x²+xy/x²-xy÷(x+y)÷-x/y²-xy
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 07:22:34
![化简x²+xy/x²-xy÷(x+y)÷-x/y²-xy](/uploads/image/z/3007375-7-5.jpg?t=%E5%8C%96%E7%AE%80x%26%23178%3B%2Bxy%2Fx%26%23178%3B-xy%C3%B7%28x%2By%29%C3%B7-x%2Fy%26%23178%3B-xy)
化简x²+xy/x²-xy÷(x+y)÷-x/y²-xy
化简x²+xy/x²-xy÷(x+y)÷-x/y²-xy
化简x²+xy/x²-xy÷(x+y)÷-x/y²-xy
原式=x(x+y)/x(x-y)*1/(x+y)*y(x-y)/x
=(x+y)/(x-y)*1/(x+y)*y(x-y)/x
=1/(x-y)*y(x-y)/x
=y/x
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来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 07:22:34
化简x²+xy/x²-xy÷(x+y)÷-x/y²-xy
化简x²+xy/x²-xy÷(x+y)÷-x/y²-xy
化简x²+xy/x²-xy÷(x+y)÷-x/y²-xy
原式=x(x+y)/x(x-y)*1/(x+y)*y(x-y)/x
=(x+y)/(x-y)*1/(x+y)*y(x-y)/x
=1/(x-y)*y(x-y)/x
=y/x