1 b) x^2 = 9
x = V9
x= 3 sau -3
e) 16x^2 = 9
x^2 = 9/16
x = V(9/16)
x = 3/4 sau -3/4
f) x^2 = 0
x= 0
2b) x^2 = 3/4
x= V(3/4)
x= V3/2 sau -V3/2
e) x^2= 0
f) 2x^2 = 1
x^2 =1/2
x= V(1/2)
x= 1/V2 rationalizam cu V2 = V2/2 sau
x= -1/V2 = -V2/2
