Question

Oricare exercitiu de la testul 3!!!REPEDE!!!

Answer 1

1. b) = radical 3 + 3+2- radical 3 + 3+2= 3+2+3+2= 10
c) E1 = 5 radical 6 - 12 radical 6 + 21 radical 6 - 32 radical 6 +45 radical 6 = 27 radical 6
E2 = 2 radical 3 - 6 radical 3 + 12 radical 3 - 20 radical 3 + 15 radical 3 = 3 radical 3

E1 * E2 = 81 radical 18 = 243 radical 2
E1 supra E2 = 9 radical 2

2. x * (3-2 radical 2)=(2 radical 3-radical 2 + 1)*(2 radical 3+radical 2 -1)
    x* (3-2 radical 2)= 9+2 radical 2
    X= 9+2 radical2 / 3- 2 radical 2
    x = 35 + 24 radical 2