Question

if x+1/x=3 calculate x2+1/x2​

Answer 1

Answer:

x+1/x=3

x+1=3x

1=2x

x=1/2

therefore

(1/2)^2+1/(1/2)^2

1/4+1/1/4

5/4/1/4

=5

the correct answer is 5

thank you