Question

If, X+1/X=4 then, what is Xsquare +1/X square =
A)16
B)14
C)12
D)none of the above

Answer 1

Answer:

answer will be then

$\frac{x + 1}{{x}^{} } = 4$

$x + 1 = 4x$

$1 = 4x - x$

$\frac{1}{3} = x$

now putting the value of x in

$\frac{ {x}^{2} + 1 }{ {x}^{2} }$