Question

Answer 1

\(A=\sqrt{72:8}+\sqrt{3.12}-\sqrt{9.3}=\sqrt{9}+\sqrt{36}-\sqrt{3^2.3}\)

\(=3+6-3\sqrt{3}=9-3\sqrt{3}\)

Answer 2

\(\sqrt{72}:\sqrt{8}+\sqrt{3}.\sqrt{12}-\sqrt{27}\)\(=6\sqrt{2}:2\sqrt{2}+\sqrt{36}-3\sqrt{3}\) \(=3+6-3\sqrt{3}\)
\(=9-3\sqrt{3}\)

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