(2x-y)(4x²+2xy+y²)化简
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/15 02:55:18
(2x-y)(4x²+2xy+y²)化简
(2x-y)(4x²+2xy+y²)化简
(2x-y)(4x²+2xy+y²)化简
(2x-y)(4x²+2xy+y²)
=(2x)³-y³
=8x³-y³
原式=8x³+4x²y+2xy²-4x²y-2xy²-y³
=8x³-y³
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来源:学生作业帮助网 编辑:作业帮 时间:2024/05/15 02:55:18
(2x-y)(4x²+2xy+y²)化简
(2x-y)(4x²+2xy+y²)化简
(2x-y)(4x²+2xy+y²)化简
(2x-y)(4x²+2xy+y²)
=(2x)³-y³
=8x³-y³
原式=8x³+4x²y+2xy²-4x²y-2xy²-y³
=8x³-y³