A = √4-2√3 + √4+2√3

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2) \( A = \sqrt{4 - 2\sqrt{3}} + \sqrt{4 + 2\sqrt{3}} \)

4) \( A = \sqrt{4 + 2\sqrt{3}} - \sqrt{4 - 2\sqrt{3}} \)

6) \( A = \sqrt{3} + 2\sqrt{2} - \sqrt{3 - 2\sqrt{2}} \)

8) \( A = \sqrt{8 - 2\sqrt{7}} - \sqrt{8 + 2\sqrt{7}} \)

10) \( A = \sqrt{28 + 10\sqrt{3}} + \sqrt{19 - 8\sqrt{3}} \)