Rút gọn
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Bài 7: Rút gọn.
a) \( \sqrt{2x} - 5\sqrt{8x} + 7\sqrt{18x} \)
b) \( (2\sqrt{3} + 4)\sqrt{3 - 2} \)
c) \( \sqrt{3 + 2\sqrt{2} + \left( \sqrt{2 - 2} \right)^2} \)
d) \( \sqrt{4 - \sqrt{15} - 4 + \sqrt{15} + \sqrt{6}} \)
e) \( \left( \frac{5 - \sqrt{5}}{\sqrt{5}} - 2 \right) \left( \frac{4}{1 + \sqrt{5}} + 4 \right) \)
f) \( \frac{1}{5} \sqrt{50} - 2\sqrt{96} - \frac{\sqrt{30}}{\sqrt{15}} + 12 \sqrt{\frac{1}{6}} \)
Bài 7: Rút gọn.
a) \( \sqrt{2x} - 5\sqrt{8x} + 7\sqrt{18x} \)
b) \( (2\sqrt{3} + 4)\sqrt{3 - 2} \)
c) \( \sqrt{3 + 2\sqrt{2} + \left( \sqrt{2 - 2} \right)^2} \)
d) \( \sqrt{4 - \sqrt{15} - 4 + \sqrt{15} + \sqrt{6}} \)
e) \( \left( \frac{5 - \sqrt{5}}{\sqrt{5}} - 2 \right) \left( \frac{4}{1 + \sqrt{5}} + 4 \right) \)
f) \( \frac{1}{5} \sqrt{50} - 2\sqrt{96} - \frac{\sqrt{30}}{\sqrt{15}} + 12 \sqrt{\frac{1}{6}} \)