(x+y)根号+X平方-Y平1/方。括号X>Y>0括号
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亲,您这道题是要将原式化简吧?
化简如下:
√(x+y)+1/(x²-y²)
=√(x+y)+1/(x+y)(x-y)
=x+y/√(x+y)+1/(x+y)(x-y)
=(√(x+y)(x²-y²)+1)/(x²-y²)
咨询记录 · 回答于2022-04-28
(x+y)根号+X平方-Y平1/方。括号X>Y>0括号
亲,您这道题是要将原式化简吧?化简如下:√(x+y)+1/(x²-y²)=√(x+y)+1/(x+y)(x-y)=x+y/√(x+y)+1/(x+y)(x-y)=(√(x+y)(x²-y²)+1)/(x²-y²)
解析:这道题属于含有未知数的分式化简,所以需要从通分,因式分解等等入手。本题只能通分化简合并。