6a²-4ab-4(2b²+0.5ab)=?怎么算
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6a²-4ab-4(2b²+0.5ab)=?怎么算6a²-4ab-4(2b²+0.5ab)=?怎么算6a²-4ab-4(2b²+0.5ab)
6a²-4ab-4(2b²+0.5ab)=?怎么算
6a²-4ab-4(2b²+0.5ab)=?
怎么算
6a²-4ab-4(2b²+0.5ab)=?怎么算
6a²-4ab-4(2b²+0.5ab)
=6a²-4ab-8b²-2ab
=6a²-6ab-8b²