Question

solve that plzz fast​

Answer 1

Answer:

x=7-4√3

x+1/x= 7+4√3 + 7-4√3

=14

Squaring both sides

(x+1/x)²=(14)²

x²+1/x² +2.x.1/x=196

x²+1/x²=196-2

x²+1/x²=194