Algebra: Value of Expressions with Roots

$\frac{\sqrt{5}+2}{\sqrt{5}+\sqrt{2}}$

$\frac{\sqrt{5}+\sqrt{2}}{\sqrt{5}-2}$

$\frac{\sqrt{5}-2}{\sqrt{5}+\sqrt{2}}$ (correct)

$\frac{\sqrt{5}-\sqrt{2}}{\sqrt{5}+2}$

$10$ (correct)

$16$

$12$

$14$

$\frac{\sqrt{5}+2}{\sqrt{5}-\sqrt{2}}$

$\frac{\sqrt{5}+\sqrt{2}}{\sqrt{5}-\sqrt{2}}$ (correct)

$\frac{\sqrt{5}-\sqrt{2}}{\sqrt{5}+2}$

$\frac{\sqrt{5}-2}{\sqrt{5}+\sqrt{2}}$

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