x²-y²/3x²+6xy+3y²约分
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/01 13:29:08
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x²-y²/3x²+6xy+3y²约分
x²-y²/3x²+6xy+3y²约分
x²-y²/3x²+6xy+3y²约分
x^2-y^2=(x+y)(x-y)
3x^2+6xy+3y^2=3(x+y)^2
x+y不等于0就可以约成(x-y)/(3x+3y)