Question

if x=3+√8 then (x^2+1/x^2​

Answer 1

Step-by-step explanation:

x=3+√8

1/x=1/(3+√8)=(3-√8)/(3+√8)(3-√8)=3-√8/(9-8)=3-√8

x+1/x=6

(x+1/x)²=x²+1/x² + 2*x*1/x=x²+1/x² + 2

36=x²+1/x² + 2

Answer 2

Step-by-step explanation:

I hope this will help you