3(x²-2xy)-2(-3xy+y²)化简
来源:学生作业帮助网 编辑:作业帮 时间:2024/04/28 18:26:57
3(x²-2xy)-2(-3xy+y²)化简
3(x²-2xy)-2(-3xy+y²)化简
3(x²-2xy)-2(-3xy+y²)化简
3(x²-2xy)-2(-3xy+y²)
=3x²-6xy+6xy-2y²
=3x²-2y²
3(x²-2xy)-2(-3xy+y²)
=3x^2-6x6+6xy-2y^2
=3x^2-2y^2
3x^2-6xy+6xy-2y^2
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来源:学生作业帮助网 编辑:作业帮 时间:2024/04/28 18:26:57
3(x²-2xy)-2(-3xy+y²)化简
3(x²-2xy)-2(-3xy+y²)化简
3(x²-2xy)-2(-3xy+y²)化简
3(x²-2xy)-2(-3xy+y²)
=3x²-6xy+6xy-2y²
=3x²-2y²
3(x²-2xy)-2(-3xy+y²)
=3x^2-6x6+6xy-2y^2
=3x^2-2y^2
3x^2-6xy+6xy-2y^2