wear.have.friend.loud

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wear.have.friend.loudwear.have.friend.loud wear.have.friend.loud解原式=(12a^6b^5+9a^4b³-3a

wear.have.friend.loud
wear.have.friend.loud
 

wear.have.friend.loud
解
原式
=(12a^6b^5+9a^4b³-3a³b²)/(3a³b²)
=(3a³b²)(4a³b³+3ab-1)/(3a³b²)
=4a³b³+3ab-1

=[12a^6*b^5+9a^4*b^3-3a^3*b^2]/(3a^3*b^2)
=4a^3*b^3+3ab-1

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