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  • Usuário do Brainly
2014-05-29T13:50:02-03:00


64a³-48a²b+12ab²-b³-(64a³+48a²b+12ab²+b³=

64a³-48a²b+12ab²-b³-64a³-48a²b-12ab²-b³=

-96a²b-2b³

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