Hej!
[tex] \frac{ \sqrt[3]{512} }{2 + \sqrt{4} } = \frac{ \sqrt[3]{ {8}^{3} } }{2 + \sqrt{ {2}^{2} } } = \frac{8}{2 + 2} = \frac{8}{4} = 2 \\ \\ \frac{ \sqrt{63} }{ \sqrt{7} } = \sqrt{ \frac{63}{7} } = \sqrt{9} = \sqrt{ {3}^{2} } = 3[/tex]
Pozdrawiam! - Julka
