(-4a^6-20a^4b^2-12a^3b+6a^3b^2)/[-(-2a)^3]

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(-4a^6-20a^4b^2-12a^3b+6a^3b^2)/[-(-2a)^3]
=(-4a^6-20a^4b^2-12a^3b+6a^3b^2)/(-8a^3)
=a^3/2+5ab^2/猜中2+3b/2-3b^2/穗念山高穗4

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(-4a^6-20a^4b^2-12a^3b+6a^3b^2)/[-(-2a)^3]
=-a³/2-5ab²/2-3b/丛宴没做2+3b²/渗察银4

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