[(ac+a)/b]*[(b*b-b)/(c+1)]化简求大家帮帮忙!

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[(ac+a)/b]*[(b*b-b)/(c+1)]化简求大家帮帮忙!
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[(ac+a)/b]*[(b*b-b)/(c+1)]化简求大家帮帮忙!
[(ac+a)/b]*[(b*b-b)/(c+1)]化简
求大家帮帮忙!

[(ac+a)/b]*[(b*b-b)/(c+1)]化简求大家帮帮忙!
=[a*(c+1)/b]*[(b*(b-1)/(c+1)]
=a*(b-1)
=ab-a

=ab-a

=[a*(c+1)/b]*[(b*(b-1)/(c+1)]
=a*(b-1)
=ab-a