Question

2+2
$2 \sqrt{5 + \sqrt{5} }$
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Answer 1

Answer:

75 = 5 2 ⋅ 3 = 5 2 ⋅ 3 = 5 ⋅ 3 \begin{aligned} \sqrt{75}&=\sqrt{\blueD{5^2}\cdot3} \\\\ &=\sqrt{\ blueD{5^2}} \cdot \sqrt{{3}} \\\\ &=5\cdot ...