问题描述:
分式的约分与通分问题
约分 (x²+xy)/(x+y)²
x²-y²/(x²-y²)
通分2xy/(x+y)²与x/x²-y²
x-y/2x+2y与xy/(x+y)²
约分 (x²+xy)/(x+y)²
x²-y²/(x²-y²)
通分2xy/(x+y)²与x/x²-y²
x-y/2x+2y与xy/(x+y)²
问题解答:
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