Question

Plz solve this problem ​

Answer 1

Step-by-step explanation:

x=5-2√6

1/X=1/5-2√6= 1/5-2√6*(5+2√6/5+2√6)

1/X=5+2√6

X+1/X= 5-2√6+5+2√6=10

(X+1/X)^2= x^2+1/x^2+2

10^2=x^2+1/x^2+2

100 - 2 =x^2+1/x^2

98 = x^2+1/x^2