Question

if x-1/x =2 so x²+ 1/x²=??​

Answer 1

Answer:

$\frac{x - 1}{x} = 2 \\ x - 1 = 2x \\ x - 2x = 1 \\ - x = 1 \\ x = - 1 \\ \\ \frac{1 + 1}{1} = \frac{2}{1} = 2$

Answer 2

Answer:

x-1/x=2

=> x-1=2x

=> x=-1

so put the value of x =-1 is the equation

=> (-1)²+1/(-1)²

=> 2

2