[(x+2y)²-(x-2y)(x+2y)]÷4y
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/23 09:37:27
[(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:2024/10/23 09:37:27
[(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