I.
1. 3√3
2. 4√7
3.
√28.radical din 27=3√3
radical din 12=2√3
-5*2√3 + 2*3√3 = 10√3 + 6√3 =16√3
4.
2√63 + 5√28 =
3√7 = √63
2√7 = √27
2*3√7 + 5*2√7 = 6√7 +10√7=16√7
5.
2√27= 2*3√3 = 6√3
6√3*(-3√3) = -54
6.
√3*√15 + 17√5= √3*√3*√5 + 17√5= 3√5+17√5=20√5
7.
(-3√11)=9
8.
(√3)-3 = 1/3√3 = √3/3
9.
√50 : (-√10) = 5√2 : 1/√10 = 5√2 * √10 =5*2√5 =10√5
10.
7√15 : (-√5) + 8√3 = 7√15 * 1/√5 + 8√3 = -7√5+8√3
11.
17/6√3 + 9/2√3 - 5/3√3 = 26/8√3 - 5/3√3 = 21/5√3 = 21√3/ 5*3 = 21√3=15
12.
(7/3√2 + 1/√2 - 5/2√2) * 2√6/5 = 3/2√2 * 2√6/5 = 63/2√2 * 2√6/5 = 6√3/5
II.
5/4√5 = 5√5 /4*5 = 5√5/20 <=> √5/4
4/√32 = 4/4√2 =4√2/4 = 2√2
III.
Ma=3√33 + 11√33 /2 = 14√33 /2 = 7√33
Mg = radical din 3√33 * 11√33 = √1089=33
