\( \sqrt{x^2 + 8x + 16} \)
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a, \( \sqrt{x^2 + 8x + 16} \).
b, \( \sqrt{7 + 4\sqrt{3}} \).
c, \( A = \sqrt{9 + 4\sqrt{2}} - \sqrt{9 - 4\sqrt{2}} \).
d, \( \sqrt{x - 4\sqrt{x + 4}} \).
e, \( \sqrt{9 - 4\sqrt{5}} \).
f, \( A = \sqrt{5 - 2\sqrt{6} + 3 + 2\sqrt{2}} \).
g, \( A = \sqrt{28 + 10\sqrt{3}} + \sqrt{19 - 8\sqrt{3}} \).
h, \( A = \sqrt{5 - 3 - 29 - 12\sqrt{5}} \).
i, \( A = 2\sqrt{3} + 5 - \sqrt{13 + \sqrt{48}} \).
j, \( A = \sqrt{17 - 6\sqrt{2} + 9 + 4\sqrt{2}} \).
k, \( A = \sqrt{6 + 2\sqrt{5} - 13 + 4\sqrt{3}} \).
l, \( A = \sqrt{13 + 30\sqrt{2} + 9 + 4\sqrt{2}} \).
a, \( \sqrt{x^2 + 8x + 16} \).
b, \( \sqrt{7 + 4\sqrt{3}} \).
c, \( A = \sqrt{9 + 4\sqrt{2}} - \sqrt{9 - 4\sqrt{2}} \).
d, \( \sqrt{x - 4\sqrt{x + 4}} \).
e, \( \sqrt{9 - 4\sqrt{5}} \).
f, \( A = \sqrt{5 - 2\sqrt{6} + 3 + 2\sqrt{2}} \).
g, \( A = \sqrt{28 + 10\sqrt{3}} + \sqrt{19 - 8\sqrt{3}} \).
h, \( A = \sqrt{5 - 3 - 29 - 12\sqrt{5}} \).
i, \( A = 2\sqrt{3} + 5 - \sqrt{13 + \sqrt{48}} \).
j, \( A = \sqrt{17 - 6\sqrt{2} + 9 + 4\sqrt{2}} \).
k, \( A = \sqrt{6 + 2\sqrt{5} - 13 + 4\sqrt{3}} \).
l, \( A = \sqrt{13 + 30\sqrt{2} + 9 + 4\sqrt{2}} \).