Răspuns:
1.a) 5 radical 3+7 radical 3- 9radical 3= 3 radical 3
b) 2radical 3× 4radical 6= 8 radical 18= 24radical 2
c) 70 radical 20 : 10 radical 2 = 7 × 2 radical 5 ×radical 2 = 14radical 10
d) (2radical 3)^3 : ( radical 2)^4 =(2radical 3)^3 / 2^2 = (8 ×3radical 3)/ 2^2= (2^3 ×3 radical 3)/ 2^2 = 2× 3 radical 3= 6radical 3
3. a+b =...= (12 radical 3 + 36radical 2-12 radical 2- 30radical 3)+ (18 radical 2+25radical3- 18radical2 -22radical 3)= -18 radical 3 +24radical 2+3 radical 3 = -15 radical 3 +24radical 2
