Answer:
34.
Step-by-step explanation:
x = 3 + 2√2
x^2 = (3+2√)^2
= 9 + 8 + 12√2
= 17 + 12√2
x^2 + 1 /x^2
= (17 + 12√2)^2 + (1 / (17 + 12√2)
= 34.
