(2x-y)(4x²+2xy+y²)化简
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(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
(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