Question

if x-1/x=4 then find x^2+1/x^2 value​

Answer 1

Step-by-step explanation:

x - 1/x = 4

Doing square both side

(x-1/x)² = 4²

x² + 1/x² - 2 = 16

x² + 1/x² = 18

Answer 2

Step-by-step explanation:

x-1=4x

3x=1x=1/3

put the value of x in given question

x²+1/x²

1/9+ 1/1/9

1/9+9

9.1 appro