Question

o quadrado da soma de: (3×+1) elevado 2
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Answer 1

Resposta:

$\left(3x+1\right)^2\\\\\left(3x\right)^2+2\cdot \:3x\cdot \:1+1^2\\\\\left(3x\right)^2+2\cdot \:3x\cdot \:1+1^2=9x^2+6x+1\\\\=9x^2+6x+1$