Question

if x-1/x=4 find the value of x^2-1/x^2​

Answer 1

Step-by-step explanation:

given = X-1/X=4

to find =X^2-1/X^2

solution = X-1/X=4

X-1=4X

-1=4X-X

-1=3X

-1/3=X

put the value of X

X^2-1/X^2

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

=(1/9-1)/(1/9)

=-8*9/9

=-8 (Answer)