Respostas

2014-01-08T11:13:09-02:00
2(3a³+4)²=
2(9a⁶+24a³+16)=
18a⁶+48a³+32
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2014-01-08T11:13:17-02:00


Quadrado da soma : (x+y) ² = x² + 2xy + y²


Primeiro resolva o quadrado : 
(3a³ + 4) ² = (3a³)² + 2.3a³.4 + (4)² 
9a^{6} + 24 a^{3}  + 16

Agora faça a distributiva
2.(3a³ + 4)²
2. (9a^{6} + 24 a^{3}  + 16

18 a^{6} + 48  a^{3} + 32

Bons estudos :D
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