a)radical6^2-radical2^2=6-2=4
b)radical din 5^2-radical din 3^2=5-3=2
c)radical din 18^2-radical din 11^2=18-11=7
d)2^2-radical din 3^2=4-3=1
e)5^2-radical din 2^2=25-2=23
f) radical din7^2-1^2=7-1=6
g)(2radical din3)^2-3^2=12-9=3
h)7^2-(4 radical din3)^2=49-48=1
i)(5 radical din3)^2-(6 radical din 2)^2=75-72=3
j)(6 radical din2)^2-8^2=72-64=8
k)(3 radical din5)^2-(2 radical din6)^2=45-24=21
l)(3 radical din5)^2-(2 radical din 11)^2=45-44=1
