Question

If x+1/x=3,find x^2+2/x^2​

Answer 1

Answer:

I hope it would help you

Answer 2

Answer:

x+1/x=3

sbs (squaring both side)

x^2+1/x^2+2 (x)(1/x)=3^2

x^2+(1/x)^2+2=9

x^2+(1/x)^2=7