Question

answer is 2
plz give full solution fast

Answer 1

X=3+2root 2
3+2 root 2*(3+2root2/2) - (3+2root2)sq. [-1/2=2] [* multiply]
[(3+2root2)square] /2 - 9+4*2
= (9+4*2/2) - 17
=(17/)2-17
=(17-34)/2
=