Resposta :

TDPessoa

a)

[tex] \sqrt{3} (\sqrt{3} +\sqrt{3})\\ \sqrt{3^{2}}+\sqrt{3^{2}}\\3+3=6[/tex]

 

b)

[tex]A^{2}.B^{2}\begin{cases}A= 2\sqrt{5} \\ B= 3\sqrt{3}\end{cases}\\(2\sqrt{5})^{2}.(3\sqrt{3})^{2}\\4.5.9.3=20.27=540[/tex]

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