x²-y²/x²+3xy+2y²
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 04:07:18
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x²-y²/x²+3xy+2y²
x²-y²/x²+3xy+2y²
x²-y²/x²+3xy+2y²
原式=(x+y)(x-y)/(x+2y)(x+y)
=(x-y)/(x+2y)
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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 04:07:18
x²-y²/x²+3xy+2y²
x²-y²/x²+3xy+2y²
x²-y²/x²+3xy+2y²
原式=(x+y)(x-y)/(x+2y)(x+y)
=(x-y)/(x+2y)