(2x-y)(4x²+2xy+y²)化简

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/30 15:10:17

(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