[(x+2y)(x-2y)+4(x-y)²]÷6x
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 09:01:25
[(x+2y)(x-2y)+4(x-y)²]÷6x
[(x+2y)(x-2y)+4(x-y)²]÷6x
=(x²-4y²+4x²-8xy+4y²)÷6x
=(5x²-8xy)÷6x
=(5x-8y)/6
[(x+2y)(x-2y)+4(x-y)²]÷6x=(x^2-4y^2+4x^2+4y^2-8xy)/6x=(5x^2-8xy)/6x=5x/6-4y/3
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来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 09:01:25
[(x+2y)(x-2y)+4(x-y)²]÷6x
[(x+2y)(x-2y)+4(x-y)²]÷6x
=(x²-4y²+4x²-8xy+4y²)÷6x
=(5x²-8xy)÷6x
=(5x-8y)/6
[(x+2y)(x-2y)+4(x-y)²]÷6x=(x^2-4y^2+4x^2+4y^2-8xy)/6x=(5x^2-8xy)/6x=5x/6-4y/3