Răspuns:
a)
[tex] \sqrt{2} + \sqrt{3} - 2 \sqrt{3} + 8 \sqrt{2} - 9 \sqrt{2} + \sqrt{3} = 0 \: numar \: rational[/tex]
b)
[tex]2 \sqrt{2} + 3 \sqrt{3} + 5 \sqrt{5} + 6 \sqrt{3} - 7 \sqrt{5} - 8 \sqrt{2} + 2 \sqrt{5} - 3 \sqrt{3} + 6 \sqrt{2} = 6 \sqrt{3} \: nu \: este \: numar \: rational[/tex]
