Question

please give answer fast​

Answer 1

Answer:

x=3+√8 or 3+2√2

so, x²=(3+2√2)²=17+12√2

and, 1/x²=1/(17+13√2)

=(17–12√2)/(289–288)

1/x²=17–12√2

So, x²+1/x²=17+12√2+17–12√2

$x {}^{2} + \frac{1}{ {x}^{2} } = 34$