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$2$. Simplify each of the following expressions:$\newline$(i) $(3+\sqrt{3})(2+\sqrt{2})$$\newline$(ii) $(3+\sqrt{3})(3-\sqrt{3})$$\newline$(iii) $(\sqrt{5}+\sqrt{2})^{2}$$\newline$(iv) $(\sqrt{5}-\sqrt{2})(\sqrt{5}+\sqrt{2})$$\newline$Recall, $\pi$ is defined as the ratio of the circumference $(s y y)$ of a circ