Question

If x = 3 + √8, then find the value of x2 + 1.

x

2​

Answer 1

Step-by-step explanation:

Here

x = 3+ √8

x = (3+√8)(3-√8) / (3-√8)

x = (9 -8) / (3-√8)

x = 1/ (3 -√8)

Or we can write 1/x = (3-√8)

Put the value and find out

x² +(1/x²) = x² + (1/x)²

So x² + 1/ x² = (3 +√8)² + (3 -√8)²

= 9+6√8+8 + 9–6√8+8

= 34. Ans…………...

I hope this answer helping u

Answer 2

Answer:

34 is the correct answer

Step-by-step explanation:

hope it's helpful to you