Question

if x-3=1/x find x^2+1/x^2​

Answer 1

(x−

x

1

)

2

=x

2

+

x

2

1

−2

(x−

x

1

)

2

=81

(x−

x

1

)

2

=9

2

x−

x

1

=9

(x−

x

1

)

3

=9

3

x

3

−

x

3

1

−3(x−

x

1

)=729

x

3

−

x

3

1

=729+27=756

Answer 2

this is answer of your question