作业帮[(x+2y）²-(x-2y)(x+2y)]÷4y
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/05 08:08:00
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[(x+2y）²-(x-2y)(x+2y)]÷4y
[(x+2y）²-(x-2y)(x+2y)]÷4y
[(x+2y）²-(x-2y)(x+2y)]÷4y
[(x+2y）²-(x-2y)(x+2y)]÷4y
=(x²+4xy+4y²-x²+4y²)÷4y
=4y(x+2y)÷4y
=x+2y
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来源：学生作业帮助网 编辑：作业帮 时间：2024/05/05 08:08:00
[(x+2y）²-(x-2y)(x+2y)]÷4y
[(x+2y）²-(x-2y)(x+2y)]÷4y
[(x+2y）²-(x-2y)(x+2y)]÷4y
[(x+2y）²-(x-2y)(x+2y)]÷4y
=(x²+4xy+4y²-x²+4y²)÷4y
=4y(x+2y)÷4y
=x+2y