Question

If +
1/x = 3, find the value of
x^2 + 1/x^2
.​

Answer 1

Step-by-step explanation:

1/x=3

=>x=1/3

Then,x²+1/x²

=(1/3)²+1/(1/3)²

=(1/9+1)/(1/9)

=(1+9/9)/(1/9)

=(10/9)/(1/9)

=10/9×9/1

=10

Answer 2

Answer:

7

Step-by-step explanation:

Given, x + 1/x = 3.

=> (x + 1/x)² = 3²

=> x² + 1/x² + 2 = 9

=> x² + 1/x² = 9-2 = 7

.°. x² + 1/x² = 7.