Question

 If x=3+8 then (x^2 + 1/x^2)=​

Answer 1

Answer:

X = 3 + 8

X = 11

then the value of

x^2 + 1/ x^2

X = 11

X^2 = (11)^2

x^2 = 121

121 + 1/ (11)^2

= 121 + 1/ 121

L.C.M = 121

121× 121 = 14641

= 14641 + 1 / 21

14641 divided by 121

= 121

= 121 + 1

= 122 Answer

Step-by-step explanation:

hopes it will help you

Answer 2

Answer:

x = 3 + √8

x = 3 + √8x = (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/x²)

So, x² + 1/x² = (3+√8)² + (3-√8)²

x = 3 =9+6√8+8+9-6√8+8

=34

hope this helps UwU