Question

if x-3=1/x find the value of x^2+1/x^2

Answer 1

Answer:

11

Step-by-step explanation:

x-3=1/x

x - 1/x = 3

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

x^2 + 1/x^2 - 2*x*1/x = 9

x^2 + 1/x^2 - 2= 9

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

x^2 + 1/x^2 = 11