21a²b²c³+9abc-6abcd Com calculos. por faavorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
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Oie, Td Bom?!
• Coloque o fator 3abc em evidência na expressão.
Att. Makaveli1996
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