Question

2. Rezolvaţi ecuatile
a .x² = 7
b. 2x²=98
c. x² +2=0​

Answer 1

a) x^2 = 7 ==> x = rad(7)

b) 2x^2 = 98 ==> x^2 = 49 ==> x = 7

c) x^2 + 2 = 0 ==> x^2 = -2 ==> nu are valori in R