Question

if x=3+√8 then the value of x^2+1/x^2 is​

Answer 1

Answer:

9+8+2(3)(root8)+1/17+6(root8)=

17+12(root2)+1/17+12(root2)=

17*17+144*2+2(17)(root2)+1/17+12(root2)=

289+288+34(root2)+1/17+12(root2)=

289*2+34(root2)/17+12(roor2)=