Răspuns:
a)
[tex]2( \sqrt{3} + \sqrt{5} ) = 2 \sqrt{3} + 2 \sqrt{5} [/tex]
b)
[tex]3(2 \sqrt{3} - \sqrt{2} ) = 6 \sqrt{3} - 3 \sqrt{2} [/tex]
c)
[tex] \sqrt{2} (5 + \sqrt{2} ) = 5 \sqrt{2} + 2[/tex]
d)
[tex] \frac{24 \times 5}{6} - \frac{72 \sqrt{10} }{12} = 20 - 6 \sqrt{10} [/tex]
