Hej!
[tex] \frac{ {18}^{2} \times {0.5}^{2} }{ \sqrt{18} \times \sqrt{0.5} } = \frac{ {(18 \times 0.5)}^{2} }{ \sqrt{18 \times 0.5} } = \frac{ {9}^{2} }{ \sqrt{9} } = \frac{81}{3} = 27[/tex]
Pozdrawiam! - Julka
