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WelingtonOesterreich
@WelingtonOesterreich
December 2019
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Alguem poderia me ajudar ?
(3A+5)²
resultado :3a²+30a+25
queria saber da onde saiu o 30a ?
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mayarasabino09ovg6g0
(3a+5)² = (3a+5).(3a+5) (distributiva)
3a.3a+3a.5+5.3a+5.5
9a²+15a+15a+25
9a²+30a+25
1 votes
Thanks 1
WelingtonOesterreich
obrigado eu parei pra pensar o ² que multiplica eles né
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Lista de comentários
3a.3a+3a.5+5.3a+5.5
9a²+15a+15a+25
9a²+30a+25