Răspuns :
1^2= 1
2^2= 4
3^2= 9
4^2= 16
5^2= 25
6^2= 36
7^2= 49
8^2= 64
9^2= 81
10^2= 100
11^2= 121
12^2= 144
13^2= 169
14^2= 196
15^2= 225
16^2= 256
17^2= 289
18^2= 324
19^2= 361
20^2= 400
SUCCES!!!
2^2= 4
3^2= 9
4^2= 16
5^2= 25
6^2= 36
7^2= 49
8^2= 64
9^2= 81
10^2= 100
11^2= 121
12^2= 144
13^2= 169
14^2= 196
15^2= 225
16^2= 256
17^2= 289
18^2= 324
19^2= 361
20^2= 400
SUCCES!!!