(2a²b)(-1/2ab²)³

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(2a²b)(-1/2ab²)³(2a²b)(-1/2ab²)³(2a²b)(-1/2ab²)³(2a

(2a²b)(-1/2ab²)³
(2a²b)(-1/2ab²)³

(2a²b)(-1/2ab²)³
(2a²b)(-1/2ab²)³
=(2a²b)(-1/8a³b的6次方)
=-1/4a的5次方b的7次方
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