Respostas

2014-08-03T22:17:27-03:00
Olá, Viniciusatos!

3ab(2a + 4b)
6a²b + 12ab²
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2014-08-03T22:40:03-03:00
3ab(2a+4b)
6a^2b+12ab^2
espero ter ajudado
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