Question

usando a regra de produto notável responda (3ab+1)²

Answer 1

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Ola Davi

(3ab + 1)² = 9a²b² + 6ab + 1

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Answer 2

Oie, Td Bom?!

$= (3ab + 1) {}^{2}$

$= (3ab) {}^{2} + 2 \: . \: 3ab \: . \: 1 + 1 {}^{2}$

$= 9a {}^{2} b {}^{2} + 6ab + 1$

Att. Makaveli1996