Question

find the value of this equation​

Answer 1

36 is the answer

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

now substitute the value

27=x^3 -(1/x)^3 -3*3*1

27+9=x^3 -(1/x)^3

36