꧁Hello, how are you?꧂
[tex] \sqrt{5} \times ( \sqrt{5 + \sqrt{} 5} ) \times ( \sqrt{5 - \sqrt{5} } ) \\ \\ \sqrt{5(5 + \sqrt{5} ) \times (5 - \sqrt{5} }) \\ \\ \sqrt{5(25 - 5)} \\ \\ \sqrt[]{5 \times 20} \\ \\ \sqrt{100} \\ \\ 10[/tex]
Ou seja... alternativa (C)
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Signed: Lohany Queen of hell 彡★
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